Searched hist:ac3467ad7f8734a21b65fa1852316a9b1b8c1fad (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/sound/hda/ext/ |
| H A D | hdac_ext_stream.c | diff ac3467ad7f8734a21b65fa1852316a9b1b8c1fad Mon Sep 19 07:10:40 CDT 2022 Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> ALSA: hda: ext: fix locking in stream_release
The snd_hdac_ext_stream_release() routine uses the bus reg_lock, but
releases it before calling snd_hdac_stream_release() where the bus
reg_lock is taken again.
This creates a timing window where the link stream release could test
an invalid 'opened' boolean status and fail to recouple the host and
link parts.
Fix by exposing a locked version of snd_hdac_stream_release() and use
it without releasing the spinlock.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20220919121041.43463-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| /openbmc/linux/sound/hda/ |
| H A D | hdac_stream.c | diff ac3467ad7f8734a21b65fa1852316a9b1b8c1fad Mon Sep 19 07:10:40 CDT 2022 Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> ALSA: hda: ext: fix locking in stream_release
The snd_hdac_ext_stream_release() routine uses the bus reg_lock, but
releases it before calling snd_hdac_stream_release() where the bus
reg_lock is taken again.
This creates a timing window where the link stream release could test
an invalid 'opened' boolean status and fail to recouple the host and
link parts.
Fix by exposing a locked version of snd_hdac_stream_release() and use
it without releasing the spinlock.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20220919121041.43463-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| /openbmc/linux/include/sound/ |
| H A D | hdaudio.h | diff ac3467ad7f8734a21b65fa1852316a9b1b8c1fad Mon Sep 19 07:10:40 CDT 2022 Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> ALSA: hda: ext: fix locking in stream_release
The snd_hdac_ext_stream_release() routine uses the bus reg_lock, but
releases it before calling snd_hdac_stream_release() where the bus
reg_lock is taken again.
This creates a timing window where the link stream release could test
an invalid 'opened' boolean status and fail to recouple the host and
link parts.
Fix by exposing a locked version of snd_hdac_stream_release() and use
it without releasing the spinlock.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20220919121041.43463-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|