Revision tags: v5.15.10, v5.15.9, v5.15.8, v5.15.7, v5.15.6, v5.15.5, v5.15.4, v5.15.3, v5.15.2, v5.15.1, v5.15, v5.14.14, v5.14.13, v5.14.12, v5.14.11, v5.14.10, v5.14.9, v5.14.8, v5.14.7, v5.14.6, v5.10.67, v5.10.66, v5.14.5, v5.14.4, v5.10.65, v5.14.3, v5.10.64, v5.14.2, v5.10.63, v5.14.1, v5.10.62, v5.14, v5.10.61, v5.10.60, v5.10.53, v5.10.52, v5.10.51, v5.10.50, v5.10.49, v5.13, v5.10.46, v5.10.43, v5.10.42, v5.10.41, v5.10.40, v5.10.39, v5.4.119, v5.10.36, v5.10.35, v5.10.34, v5.4.116, v5.10.33, v5.12, v5.10.32, v5.10.31, v5.10.30, v5.10.27, v5.10.26, v5.10.25, v5.10.24, v5.10.23, v5.10.22, v5.10.21, v5.10.20, v5.10.19, v5.4.101, v5.10.18, v5.10.17, v5.11, v5.10.16, v5.10.15, v5.10.14, v5.10, v5.8.17, v5.8.16, v5.8.15, v5.9, v5.8.14, v5.8.13, v5.8.12, v5.8.11, v5.8.10, v5.8.9, v5.8.8, v5.8.7, v5.8.6, v5.4.62, v5.8.5, v5.8.4, v5.4.61, v5.8.3, v5.4.60, v5.8.2, v5.4.59, v5.8.1, v5.4.58, v5.4.57, v5.4.56, v5.8, v5.7.12, v5.4.55, v5.7.11, v5.4.54, v5.7.10, v5.4.53, v5.4.52, v5.7.9 |
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#
f040e0fd |
| 14-Jul-2020 |
Randy Dunlap <rdunlap@infradead.org> |
media: media-devnode.h: drop duplicated word in comment
Delete the doubled word "the" in a comment.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@x
media: media-devnode.h: drop duplicated word in comment
Delete the doubled word "the" in a comment.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Revision tags: v5.7.8, v5.4.51, v5.4.50, v5.7.7, v5.4.49, v5.7.6, v5.7.5, v5.4.48, v5.7.4, v5.7.3, v5.4.47, v5.4.46, v5.7.2, v5.4.45, v5.7.1, v5.4.44, v5.7, v5.4.43, v5.4.42, v5.4.41, v5.4.40, v5.4.39, v5.4.38, v5.4.37, v5.4.36, v5.4.35, v5.4.34, v5.4.33, v5.4.32, v5.4.31, v5.4.30, v5.4.29, v5.6, v5.4.28, v5.4.27, v5.4.26, v5.4.25, v5.4.24, v5.4.23, v5.4.22, v5.4.21, v5.4.20, v5.4.19, v5.4.18, v5.4.17, v5.4.16, v5.5, v5.4.15, v5.4.14, v5.4.13, v5.4.12, v5.4.11, v5.4.10, v5.4.9, v5.4.8, v5.4.7, v5.4.6, v5.4.5, v5.4.4, v5.4.3, v5.3.15, v5.4.2, v5.4.1, v5.3.14, v5.4, v5.3.13, v5.3.12, v5.3.11, v5.3.10, v5.3.9, v5.3.8, v5.3.7, v5.3.6, v5.3.5, v5.3.4, v5.3.3, v5.3.2, v5.3.1, v5.3, v5.2.14, v5.3-rc8, v5.2.13, v5.2.12, v5.2.11, v5.2.10, v5.2.9, v5.2.8, v5.2.7, v5.2.6, v5.2.5, v5.2.4, v5.2.3, v5.2.2, v5.2.1, v5.2, v5.1.16, v5.1.15, v5.1.14, v5.1.13, v5.1.12, v5.1.11, v5.1.10, v5.1.9, v5.1.8, v5.1.7, v5.1.6 |
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#
1802d0be |
| 27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify it under the terms of th
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 655 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v5.1.5, v5.1.4, v5.1.3, v5.1.2, v5.1.1, v5.0.14, v5.1, v5.0.13, v5.0.12, v5.0.11, v5.0.10, v5.0.9, v5.0.8, v5.0.7, v5.0.6, v5.0.5, v5.0.4, v5.0.3, v4.19.29, v5.0.2, v4.19.28, v5.0.1, v4.19.27, v5.0, v4.19.26, v4.19.25, v4.19.24, v4.19.23, v4.19.22, v4.19.21, v4.19.20, v4.19.19, v4.19.18, v4.19.17, v4.19.16, v4.19.15, v4.19.14, v4.19.13, v4.19.12, v4.19.11, v4.19.10, v4.19.9, v4.19.8, v4.19.7, v4.19.6, v4.19.5, v4.19.4, v4.18.20, v4.19.3, v4.18.19, v4.19.2, v4.18.18, v4.18.17, v4.19.1, v4.19, v4.18.16, v4.18.15, v4.18.14, v4.18.13, v4.18.12, v4.18.11, v4.18.10, v4.18.9, v4.18.7, v4.18.6, v4.18.5, v4.17.18, v4.18.4, v4.18.3, v4.17.17, v4.18.2, v4.17.16, v4.17.15, v4.18.1, v4.18, v4.17.14, v4.17.13, v4.17.12, v4.17.11, v4.17.10, v4.17.9, v4.17.8, v4.17.7, v4.17.6, v4.17.5, v4.17.4, v4.17.3, v4.17.2, v4.17.1, v4.17, v4.16, v4.15, v4.13.16, v4.14, v4.13.5, v4.13 |
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#
a3f8683b |
| 02-Jul-2017 |
Al Viro <viro@zeniv.linux.org.uk> |
->poll() methods should return __poll_t
The most common place to find POLL... bitmaps: return values of ->poll() and its subsystem counterparts.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Revision tags: v4.12, v4.10.17, v4.10.16, v4.10.15, v4.10.14, v4.10.13, v4.10.12, v4.10.11, v4.10.10, v4.10.9, v4.10.8, v4.10.7, v4.10.6, v4.10.5, v4.10.4, v4.10.3, v4.10.2, v4.10.1, v4.10, v4.9, openbmc-4.4-20161121-1, v4.4.33, v4.4.32, v4.4.31, v4.4.30, v4.4.29 |
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#
bcb63314 |
| 28-Oct-2016 |
Sakari Ailus <sakari.ailus@linux.intel.com> |
[media] media: Drop FSF's postal address from the source code files
Drop the FSF's postal address from the source code files that typically contain mostly the license text. Of the 628 removed instan
[media] media: Drop FSF's postal address from the source code files
Drop the FSF's postal address from the source code files that typically contain mostly the license text. Of the 628 removed instances, 578 are outdated.
The patch has been created with the following command without manual edits:
git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \ drivers/media/ include/media|while read i; do i=$i perl -e ' open(F,"< $ENV{i}"); $a=join("", <F>); $a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m && $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m; close(F); open(F, "> $ENV{i}"); print F $a; close(F);'; done
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Revision tags: v4.4.28, v4.4.27, v4.7.10, openbmc-4.4-20161021-1, v4.7.9, v4.4.26, v4.7.8, v4.4.25, v4.4.24, v4.7.7, v4.8, v4.4.23, v4.7.6, v4.7.5, v4.4.22, v4.4.21, v4.7.4 |
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#
82631b5b |
| 08-Sep-2016 |
Mauro Carvalho Chehab <mchehab@s-opensource.com> |
[media] mc-core.rst: fix a warning about an internal routine
Fix this warning: Documentation/media/kapi/mc-core.rst:97: WARNING: c:func reference target not found: media_devnode_release
The media_
[media] mc-core.rst: fix a warning about an internal routine
Fix this warning: Documentation/media/kapi/mc-core.rst:97: WARNING: c:func reference target not found: media_devnode_release
The media_device_release() is a function internal to media-devnode.c, and not exported elsewhere. So, we can't cross-reference it here. Make it explicit at the documentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Revision tags: v4.7.3, v4.4.20 |
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#
48a7c4ba |
| 29-Aug-2016 |
Mauro Carvalho Chehab <mchehab@s-opensource.com> |
[media] docs-rst: improve the kAPI documentation for the mediactl
There are several issues on the documentation: - the media.h header were not properly referenced; - verbatim expressions were no
[media] docs-rst: improve the kAPI documentation for the mediactl
There are several issues on the documentation: - the media.h header were not properly referenced; - verbatim expressions were not properly marked as such; - struct member references were wrong; - some notes were not using the right markup; - a comment that were moved to the kernel-doc markup were duplicated as a comment inside the struct media_entity; - some args were not pointing to the struct they're using; - macros weren't documented.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Revision tags: v4.7.2, v4.4.19, openbmc-4.4-20160819-1, v4.7.1, v4.4.18, v4.4.17, openbmc-4.4-20160804-1, v4.4.16, v4.7, openbmc-4.4-20160722-1, openbmc-20160722-1, openbmc-20160713-1, v4.4.15, v4.6.4, v4.6.3, v4.4.14 |
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#
0db5c799 |
| 16-Jun-2016 |
Mauro Carvalho Chehab <mchehab@s-opensource.com> |
[media] media-devnode.h: Fix documentation
Two parameters were documented with a wrong name, and a struct device pointer description was missing.
That caused the following warnings, when building d
[media] media-devnode.h: Fix documentation
Two parameters were documented with a wrong name, and a struct device pointer description was missing.
That caused the following warnings, when building documentation:
include/media/media-devnode.h:102: warning: No description found for parameter 'media_dev' include/media/media-devnode.h:126: warning: No description found for parameter 'mdev' include/media/media-devnode.h:126: warning: Excess function parameter 'media_dev' description in 'media_devnode_register'
Rename the description, to match the function parameter and fix Documentation.
No funcional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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#
6f0dd24a |
| 10-Jun-2016 |
Shuah Khan <shuahkh@osg.samsung.com> |
[media] media: fix media devnode ioctl/syscall and unregister race
Media devnode open/ioctl could be in progress when media device unregister is initiated. System calls and ioctls check media device
[media] media: fix media devnode ioctl/syscall and unregister race
Media devnode open/ioctl could be in progress when media device unregister is initiated. System calls and ioctls check media device registered status at the beginning, however, there is a window where unregister could be in progress without changing the media devnode status to unregistered.
process 1 process 2 fd = open(/dev/media0) media_devnode_is_registered() (returns true here)
media_device_unregister() (unregister is in progress and devnode isn't unregistered yet) ... ioctl(fd, ...) __media_ioctl() media_devnode_is_registered() (returns true here) ... media_devnode_unregister() ... (driver releases the media device memory)
media_device_ioctl() (By this point devnode->media_dev does not point to allocated memory. use-after free in in mutex_lock_nested)
BUG: KASAN: use-after-free in mutex_lock_nested+0x79c/0x800 at addr ffff8801ebe914f0
Fix it by clearing register bit when unregister starts to avoid the race.
process 1 process 2 fd = open(/dev/media0) media_devnode_is_registered() (could return true here)
media_device_unregister() (clear the register bit, then start unregister.) ... ioctl(fd, ...) __media_ioctl() media_devnode_is_registered() (return false here, ioctl returns I/O error, and will not access media device memory) ... media_devnode_unregister() ... (driver releases the media device memory)
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reported-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Tested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Revision tags: v4.6.2, v4.4.13, openbmc-20160606-1, v4.6.1, v4.4.12, openbmc-20160521-1, v4.4.11, openbmc-20160518-1, v4.6, v4.4.10, openbmc-20160511-1, openbmc-20160505-1, v4.4.9 |
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#
a087ce70 |
| 27-Apr-2016 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
[media] media-device: dynamically allocate struct media_devnode
struct media_devnode is currently embedded at struct media_device.
While this works fine during normal usage, it leads to a race cond
[media] media-device: dynamically allocate struct media_devnode
struct media_devnode is currently embedded at struct media_device.
While this works fine during normal usage, it leads to a race condition during devnode unregister. the problem is that drivers assume that, after calling media_device_unregister(), the struct that contains media_device can be freed. This is not true, as it can't be freed until userspace closes all opened /dev/media devnodes.
In other words, if the media devnode is still open, and media_device gets freed, any call to an ioctl will make the core to try to access struct media_device, with will cause an use-after-free and even GPF.
Fix this by dynamically allocating the struct media_devnode and only freeing it when it is safe.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Revision tags: v4.4.8, v4.4.7, openbmc-20160329-2, openbmc-20160329-1 |
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#
163f1e93 |
| 23-Mar-2016 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
[media] media-devnode: fix namespace mess
Along all media controller code, "mdev" is used to represent a pointer to struct media_device, and "devnode" for a pointer to struct media_devnode.
However
[media] media-devnode: fix namespace mess
Along all media controller code, "mdev" is used to represent a pointer to struct media_device, and "devnode" for a pointer to struct media_devnode.
However, inside media-devnode.[ch], "mdev" is used to represent a pointer to struct media_devnode.
This is very confusing and may lead to development errors.
So, let's change all occurrences at media-devnode.[ch] to also use "devnode" for such pointers.
This patch doesn't make any functional changes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Revision tags: openbmc-20160321-1, v4.4.6, v4.5, v4.4.5, v4.4.4, v4.4.3, openbmc-20160222-1, v4.4.2, openbmc-20160212-1, openbmc-20160210-1, openbmc-20160202-2, openbmc-20160202-1, v4.4.1, openbmc-20160127-1, openbmc-20160120-1, v4.4, openbmc-20151217-1 |
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#
75c7e295 |
| 13-Dec-2015 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
[media] media-devnode.h: document the remaining struct/functions
There is one struct and two functions that were not documented. Add the corresponding kernel-doc documentation for them.
Signed-off-
[media] media-devnode.h: document the remaining struct/functions
There is one struct and two functions that were not documented. Add the corresponding kernel-doc documentation for them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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#
fe3c565e |
| 13-Dec-2015 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
[media] media-devnode: move kernel-doc documentation to the header
As we're using the headers file only for documentation, move the two kernel-doc macros to the header, and fix it to avoid warnings.
[media] media-devnode: move kernel-doc documentation to the header
As we're using the headers file only for documentation, move the two kernel-doc macros to the header, and fix it to avoid warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Revision tags: openbmc-20151210-1, openbmc-20151202-1, openbmc-20151123-1, openbmc-20151118-1, openbmc-20151104-1, v4.3, openbmc-20151102-1, openbmc-20151028-1, v4.3-rc1, v4.2, v4.2-rc8 |
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#
ec0255ca |
| 22-Aug-2015 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
[media] Docbook: Fix description of struct media_devnode
Warning(.//include/media/media-devnode.h:80): No description found for parameter 'fops' Warning(.//include/media/media-devnode.h:80): No desc
[media] Docbook: Fix description of struct media_devnode
Warning(.//include/media/media-devnode.h:80): No description found for parameter 'fops' Warning(.//include/media/media-devnode.h:80): No description found for parameter 'dev' Warning(.//include/media/media-devnode.h:80): No description found for parameter 'cdev' Warning(.//include/media/media-devnode.h:80): No description found for parameter 'release'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
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Revision tags: v4.2-rc7, v4.2-rc6, v4.2-rc5, v4.2-rc4, v4.2-rc3, v4.2-rc2, v4.2-rc1, v4.1, v4.1-rc8, v4.1-rc7, v4.1-rc6, v4.1-rc5, v4.1-rc4, v4.1-rc3, v4.1-rc2, v4.1-rc1, v4.0, v4.0-rc7, v4.0-rc6, v4.0-rc5, v4.0-rc4, v4.0-rc3, v4.0-rc2, v4.0-rc1, v3.19, v3.19-rc7, v3.19-rc6, v3.19-rc5, v3.19-rc4, v3.19-rc3, v3.19-rc2, v3.19-rc1, v3.18, v3.18-rc7, v3.18-rc6, v3.18-rc5, v3.18-rc4, v3.18-rc3, v3.18-rc2, v3.18-rc1, v3.17, v3.17-rc7, v3.17-rc6, v3.17-rc5, v3.17-rc4, v3.17-rc3, v3.17-rc2, v3.17-rc1, v3.16, v3.16-rc7, v3.16-rc6, v3.16-rc5, v3.16-rc4, v3.16-rc3, v3.16-rc2, v3.16-rc1, v3.15, v3.15-rc8, v3.15-rc7, v3.15-rc6, v3.15-rc5, v3.15-rc4, v3.15-rc3, v3.15-rc2, v3.15-rc1, v3.14, v3.14-rc8, v3.14-rc7, v3.14-rc6, v3.14-rc5, v3.14-rc4, v3.14-rc3, v3.14-rc2, v3.14-rc1, v3.13, v3.13-rc8, v3.13-rc7, v3.13-rc6, v3.13-rc5, v3.13-rc4 |
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#
85de721c |
| 12-Dec-2013 |
Sakari Ailus <sakari.ailus@linux.intel.com> |
[media] media: Use a better owner for the media device
mdev->fops->owner is actually the owner of the very same module which implements media_device_register(), so it can't be unloaded anyway. Inste
[media] media: Use a better owner for the media device
mdev->fops->owner is actually the owner of the very same module which implements media_device_register(), so it can't be unloaded anyway. Instead, use THIS_MODULE through a macro as does video_register_device().
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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Revision tags: v3.13-rc3, v3.13-rc2, v3.13-rc1, v3.12, v3.12-rc7, v3.12-rc6, v3.12-rc5, v3.12-rc4, v3.12-rc3, v3.12-rc2, v3.12-rc1, v3.11, v3.11-rc7, v3.11-rc6, v3.11-rc5, v3.11-rc4, v3.11-rc3, v3.11-rc2, v3.11-rc1, v3.10, v3.10-rc7, v3.10-rc6, v3.10-rc5, v3.10-rc4, v3.10-rc3, v3.10-rc2, v3.10-rc1, v3.9, v3.9-rc8, v3.9-rc7, v3.9-rc6, v3.9-rc5, v3.9-rc4, v3.9-rc3, v3.9-rc2, v3.9-rc1, v3.8, v3.8-rc7, v3.8-rc6, v3.8-rc5 |
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#
c6c1d50b |
| 22-Jan-2013 |
Sakari Ailus <sakari.ailus@iki.fi> |
[media] media: Add 64--32 bit compat ioctl handler
Provide an ioctl handler for 32-bit binaries on 64-bit systems.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laur
[media] media: Add 64--32 bit compat ioctl handler
Provide an ioctl handler for 32-bit binaries on 64-bit systems.
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Revision tags: v3.8-rc4, v3.8-rc3, v3.8-rc2, v3.8-rc1, v3.7, v3.7-rc8, v3.7-rc7, v3.7-rc6, v3.7-rc5, v3.7-rc4, v3.7-rc3, v3.7-rc2, v3.7-rc1, v3.6, v3.6-rc7, v3.6-rc6, v3.6-rc5, v3.6-rc4, v3.6-rc3, v3.6-rc2, v3.6-rc1, v3.5, v3.5-rc7, v3.5-rc6, v3.5-rc5, v3.5-rc4, v3.5-rc3, v3.5-rc2, v3.5-rc1, v3.4, v3.4-rc7, v3.4-rc6, v3.4-rc5, v3.4-rc4, v3.4-rc3, v3.4-rc2, v3.4-rc1, v3.3, v3.3-rc7, v3.3-rc6, v3.3-rc5, v3.3-rc4, v3.3-rc3, v3.3-rc2, v3.3-rc1, v3.2, v3.2-rc7, v3.2-rc6, v3.2-rc5, v3.2-rc4, v3.2-rc3, v3.2-rc2, v3.2-rc1, v3.1, v3.1-rc10, v3.1-rc9, v3.1-rc8, v3.1-rc7, v3.1-rc6, v3.1-rc5, v3.1-rc4, v3.1-rc3, v3.1-rc2, v3.1-rc1, v3.0, v3.0-rc7, v3.0-rc6, v3.0-rc5, v3.0-rc4, v3.0-rc3, v3.0-rc2, v3.0-rc1, v2.6.39, v2.6.39-rc7, v2.6.39-rc6, v2.6.39-rc5, v2.6.39-rc4, v2.6.39-rc3, v2.6.39-rc2, v2.6.39-rc1, v2.6.38, v2.6.38-rc8, v2.6.38-rc7, v2.6.38-rc6, v2.6.38-rc5, v2.6.38-rc4, v2.6.38-rc3, v2.6.38-rc2, v2.6.38-rc1, v2.6.37, v2.6.37-rc8, v2.6.37-rc7, v2.6.37-rc6, v2.6.37-rc5, v2.6.37-rc4, v2.6.37-rc3, v2.6.37-rc2, v2.6.37-rc1, v2.6.36, v2.6.36-rc8, v2.6.36-rc7, v2.6.36-rc6, v2.6.36-rc5, v2.6.36-rc4, v2.6.36-rc3, v2.6.36-rc2, v2.6.36-rc1, v2.6.35, v2.6.35-rc6, v2.6.35-rc5, v2.6.35-rc4, v2.6.35-rc3, v2.6.35-rc2, v2.6.35-rc1, v2.6.34, v2.6.34-rc7, v2.6.34-rc6, v2.6.34-rc5, v2.6.34-rc4, v2.6.34-rc3, v2.6.34-rc2, v2.6.34-rc1, v2.6.33, v2.6.33-rc8, v2.6.33-rc7, v2.6.33-rc6, v2.6.33-rc5, v2.6.33-rc4, v2.6.33-rc3, v2.6.33-rc2, v2.6.33-rc1 |
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#
cf4b9211 |
| 09-Dec-2009 |
Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
[media] media: Media device node support
The media_devnode structure provides support for registering and unregistering character devices using a dynamic major number. Reference counting is handled
[media] media: Media device node support
The media_devnode structure provides support for registering and unregistering character devices using a dynamic major number. Reference counting is handled internally, making device drivers easier to write without having to solve the open/disconnect race condition issue over and over again.
The code is based on video/v4l2-dev.c.
[mchehab@redhat.com: Remove linux/smp_lock.h include to not break compilation on bisect] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Revision tags: v5.15.10, v5.15.9, v5.15.8, v5.15.7, v5.15.6, v5.15.5, v5.15.4, v5.15.3, v5.15.2, v5.15.1, v5.15, v5.14.14, v5.14.13, v5.14.12, v5.14.11, v5.14.10, v5.14.9, v5.14.8, v5.14.7, v5.14.6, v5.10.67, v5.10.66, v5.14.5, v5.14.4, v5.10.65, v5.14.3, v5.10.64, v5.14.2, v5.10.63, v5.14.1, v5.10.62, v5.14, v5.10.61, v5.10.60, v5.10.53, v5.10.52, v5.10.51, v5.10.50, v5.10.49, v5.13, v5.10.46, v5.10.43, v5.10.42, v5.10.41, v5.10.40, v5.10.39, v5.4.119, v5.10.36, v5.10.35, v5.10.34, v5.4.116, v5.10.33, v5.12, v5.10.32, v5.10.31, v5.10.30, v5.10.27, v5.10.26, v5.10.25, v5.10.24, v5.10.23, v5.10.22, v5.10.21, v5.10.20, v5.10.19, v5.4.101, v5.10.18, v5.10.17, v5.11, v5.10.16, v5.10.15, v5.10.14, v5.10, v5.8.17, v5.8.16, v5.8.15, v5.9, v5.8.14, v5.8.13, v5.8.12, v5.8.11, v5.8.10, v5.8.9, v5.8.8, v5.8.7, v5.8.6, v5.4.62, v5.8.5, v5.8.4, v5.4.61, v5.8.3, v5.4.60, v5.8.2, v5.4.59, v5.8.1, v5.4.58, v5.4.57, v5.4.56, v5.8, v5.7.12, v5.4.55, v5.7.11, v5.4.54, v5.7.10, v5.4.53, v5.4.52, v5.7.9 |
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#
f040e0fd |
| 14-Jul-2020 |
Randy Dunlap <rdunlap@infradead.org> |
media: media-devnode.h: drop duplicated word in comment Delete the doubled word "the" in a comment. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Hans Verku
media: media-devnode.h: drop duplicated word in comment Delete the doubled word "the" in a comment. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Revision tags: v5.7.8, v5.4.51, v5.4.50, v5.7.7, v5.4.49, v5.7.6, v5.7.5, v5.4.48, v5.7.4, v5.7.3, v5.4.47, v5.4.46, v5.7.2, v5.4.45, v5.7.1, v5.4.44, v5.7, v5.4.43, v5.4.42, v5.4.41, v5.4.40, v5.4.39, v5.4.38, v5.4.37, v5.4.36, v5.4.35, v5.4.34, v5.4.33, v5.4.32, v5.4.31, v5.4.30, v5.4.29, v5.6, v5.4.28, v5.4.27, v5.4.26, v5.4.25, v5.4.24, v5.4.23, v5.4.22, v5.4.21, v5.4.20, v5.4.19, v5.4.18, v5.4.17, v5.4.16, v5.5, v5.4.15, v5.4.14, v5.4.13, v5.4.12, v5.4.11, v5.4.10, v5.4.9, v5.4.8, v5.4.7, v5.4.6, v5.4.5, v5.4.4, v5.4.3, v5.3.15, v5.4.2, v5.4.1, v5.3.14, v5.4, v5.3.13, v5.3.12, v5.3.11, v5.3.10, v5.3.9, v5.3.8, v5.3.7, v5.3.6, v5.3.5, v5.3.4, v5.3.3, v5.3.2, v5.3.1, v5.3, v5.2.14, v5.3-rc8, v5.2.13, v5.2.12, v5.2.11, v5.2.10, v5.2.9, v5.2.8, v5.2.7, v5.2.6, v5.2.5, v5.2.4, v5.2.3, v5.2.2, v5.2.1, v5.2, v5.1.16, v5.1.15, v5.1.14, v5.1.13, v5.1.12, v5.1.11, v5.1.10, v5.1.9, v5.1.8, v5.1.7, v5.1.6 |
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#
1802d0be |
| 27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it u
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v5.1.5, v5.1.4, v5.1.3, v5.1.2, v5.1.1, v5.0.14, v5.1, v5.0.13, v5.0.12, v5.0.11, v5.0.10, v5.0.9, v5.0.8, v5.0.7, v5.0.6, v5.0.5, v5.0.4, v5.0.3, v4.19.29, v5.0.2, v4.19.28, v5.0.1, v4.19.27, v5.0, v4.19.26, v4.19.25, v4.19.24, v4.19.23, v4.19.22, v4.19.21, v4.19.20, v4.19.19, v4.19.18, v4.19.17, v4.19.16, v4.19.15, v4.19.14, v4.19.13, v4.19.12, v4.19.11, v4.19.10, v4.19.9, v4.19.8, v4.19.7, v4.19.6, v4.19.5, v4.19.4, v4.18.20, v4.19.3, v4.18.19, v4.19.2, v4.18.18, v4.18.17, v4.19.1, v4.19, v4.18.16, v4.18.15, v4.18.14, v4.18.13, v4.18.12, v4.18.11, v4.18.10, v4.18.9, v4.18.7, v4.18.6, v4.18.5, v4.17.18, v4.18.4, v4.18.3, v4.17.17, v4.18.2, v4.17.16, v4.17.15, v4.18.1, v4.18, v4.17.14, v4.17.13, v4.17.12, v4.17.11, v4.17.10, v4.17.9, v4.17.8, v4.17.7, v4.17.6, v4.17.5, v4.17.4, v4.17.3, v4.17.2, v4.17.1, v4.17, v4.16, v4.15, v4.13.16, v4.14, v4.13.5, v4.13 |
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#
a3f8683b |
| 02-Jul-2017 |
Al Viro <viro@zeniv.linux.org.uk> |
->poll() methods should return __poll_t The most common place to find POLL... bitmaps: return values of ->poll() and its subsystem counterparts. Signed-off-by: Al Viro <viro@zen
->poll() methods should return __poll_t The most common place to find POLL... bitmaps: return values of ->poll() and its subsystem counterparts. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Revision tags: v4.12, v4.10.17, v4.10.16, v4.10.15, v4.10.14, v4.10.13, v4.10.12, v4.10.11, v4.10.10, v4.10.9, v4.10.8, v4.10.7, v4.10.6, v4.10.5, v4.10.4, v4.10.3, v4.10.2, v4.10.1, v4.10, v4.9, openbmc-4.4-20161121-1, v4.4.33, v4.4.32, v4.4.31, v4.4.30, v4.4.29 |
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#
bcb63314 |
| 28-Oct-2016 |
Sakari Ailus <sakari.ailus@linux.intel.com> |
[media] media: Drop FSF's postal address from the source code files Drop the FSF's postal address from the source code files that typically contain mostly the license text. Of the 628 re
[media] media: Drop FSF's postal address from the source code files Drop the FSF's postal address from the source code files that typically contain mostly the license text. Of the 628 removed instances, 578 are outdated. The patch has been created with the following command without manual edits: git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \ drivers/media/ include/media|while read i; do i=$i perl -e ' open(F,"< $ENV{i}"); $a=join("", <F>); $a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m && $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m; close(F); open(F, "> $ENV{i}"); print F $a; close(F);'; done Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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Revision tags: v4.4.28, v4.4.27, v4.7.10, openbmc-4.4-20161021-1, v4.7.9, v4.4.26, v4.7.8, v4.4.25, v4.4.24, v4.7.7, v4.8, v4.4.23, v4.7.6, v4.7.5, v4.4.22, v4.4.21, v4.7.4 |
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#
82631b5b |
| 08-Sep-2016 |
Mauro Carvalho Chehab <mchehab@s-opensource.com> |
[media] mc-core.rst: fix a warning about an internal routine Fix this warning: Documentation/media/kapi/mc-core.rst:97: WARNING: c:func reference target not found: media_devnode_
[media] mc-core.rst: fix a warning about an internal routine Fix this warning: Documentation/media/kapi/mc-core.rst:97: WARNING: c:func reference target not found: media_devnode_release The media_device_release() is a function internal to media-devnode.c, and not exported elsewhere. So, we can't cross-reference it here. Make it explicit at the documentation. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Revision tags: v4.7.3, v4.4.20 |
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#
48a7c4ba |
| 29-Aug-2016 |
Mauro Carvalho Chehab <mchehab@s-opensource.com> |
[media] docs-rst: improve the kAPI documentation for the mediactl There are several issues on the documentation: - the media.h header were not properly referenced; - verbatim exp
[media] docs-rst: improve the kAPI documentation for the mediactl There are several issues on the documentation: - the media.h header were not properly referenced; - verbatim expressions were not properly marked as such; - struct member references were wrong; - some notes were not using the right markup; - a comment that were moved to the kernel-doc markup were duplicated as a comment inside the struct media_entity; - some args were not pointing to the struct they're using; - macros weren't documented. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Revision tags: v4.7.2, v4.4.19, openbmc-4.4-20160819-1, v4.7.1, v4.4.18, v4.4.17, openbmc-4.4-20160804-1, v4.4.16, v4.7, openbmc-4.4-20160722-1, openbmc-20160722-1, openbmc-20160713-1, v4.4.15, v4.6.4, v4.6.3, v4.4.14 |
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#
0db5c799 |
| 16-Jun-2016 |
Mauro Carvalho Chehab <mchehab@s-opensource.com> |
[media] media-devnode.h: Fix documentation Two parameters were documented with a wrong name, and a struct device pointer description was missing. That caused the following warni
[media] media-devnode.h: Fix documentation Two parameters were documented with a wrong name, and a struct device pointer description was missing. That caused the following warnings, when building documentation: include/media/media-devnode.h:102: warning: No description found for parameter 'media_dev' include/media/media-devnode.h:126: warning: No description found for parameter 'mdev' include/media/media-devnode.h:126: warning: Excess function parameter 'media_dev' description in 'media_devnode_register' Rename the description, to match the function parameter and fix Documentation. No funcional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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#
6f0dd24a |
| 10-Jun-2016 |
Shuah Khan <shuahkh@osg.samsung.com> |
[media] media: fix media devnode ioctl/syscall and unregister race Media devnode open/ioctl could be in progress when media device unregister is initiated. System calls and ioctls check
[media] media: fix media devnode ioctl/syscall and unregister race Media devnode open/ioctl could be in progress when media device unregister is initiated. System calls and ioctls check media device registered status at the beginning, however, there is a window where unregister could be in progress without changing the media devnode status to unregistered. process 1 process 2 fd = open(/dev/media0) media_devnode_is_registered() (returns true here) media_device_unregister() (unregister is in progress and devnode isn't unregistered yet) ... ioctl(fd, ...) __media_ioctl() media_devnode_is_registered() (returns true here) ... media_devnode_unregister() ... (driver releases the media device memory) media_device_ioctl() (By this point devnode->media_dev does not point to allocated memory. use-after free in in mutex_lock_nested) BUG: KASAN: use-after-free in mutex_lock_nested+0x79c/0x800 at addr ffff8801ebe914f0 Fix it by clearing register bit when unregister starts to avoid the race. process 1 process 2 fd = open(/dev/media0) media_devnode_is_registered() (could return true here) media_device_unregister() (clear the register bit, then start unregister.) ... ioctl(fd, ...) __media_ioctl() media_devnode_is_registered() (return false here, ioctl returns I/O error, and will not access media device memory) ... media_devnode_unregister() ... (driver releases the media device memory) Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reported-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Tested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Revision tags: v4.6.2, v4.4.13, openbmc-20160606-1, v4.6.1, v4.4.12, openbmc-20160521-1, v4.4.11, openbmc-20160518-1, v4.6, v4.4.10, openbmc-20160511-1, openbmc-20160505-1, v4.4.9 |
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#
a087ce70 |
| 27-Apr-2016 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
[media] media-device: dynamically allocate struct media_devnode struct media_devnode is currently embedded at struct media_device. While this works fine during normal usage, it lead
[media] media-device: dynamically allocate struct media_devnode struct media_devnode is currently embedded at struct media_device. While this works fine during normal usage, it leads to a race condition during devnode unregister. the problem is that drivers assume that, after calling media_device_unregister(), the struct that contains media_device can be freed. This is not true, as it can't be freed until userspace closes all opened /dev/media devnodes. In other words, if the media devnode is still open, and media_device gets freed, any call to an ioctl will make the core to try to access struct media_device, with will cause an use-after-free and even GPF. Fix this by dynamically allocating the struct media_devnode and only freeing it when it is safe. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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