• Jean Delvare's avatar
    i7300_edac: Fix device reference count · 75135da0
    Jean Delvare authored
    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: default avatarJean 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: default avatarBorislav Petkov <bp@suse.de>
    75135da0
i7300_edac.c 35.3 KB