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H A D | i7300_edac.c | diff 75135da0d68419ef8a925f4c1d5f63d8046e314d Tue Feb 25 02:43:13 CST 2014 Jean Delvare <jdelvare@suse.de> i7300_edac: Fix device reference count
pci_get_device() decrements the reference count of "from" (last argument) so when we break off the loop successfully we have only one device reference - and we don't know which device we have. If we want a reference to each device, we must take them explicitly and let the pci_get_device() walk complete to avoid duplicate references.
This is serious, as over-putting device references will cause the device to eventually disappear. Without this fix, the kernel crashes after a few insmod/rmmod cycles.
Tested on an Intel S7000FC4UR system with a 7300 chipset.
Signed-off-by: Jean Delvare <jdelvare@suse.de> Link: http://lkml.kernel.org/r/20140224111656.09bbb7ed@endymion.delvare Cc: Mauro Carvalho Chehab <m.chehab@samsung.com> Cc: Doug Thompson <dougthompson@xmission.com> Cc: stable@vger.kernel.org Signed-off-by: Borislav Petkov <bp@suse.de>
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