android_kernel_samsung_msm8976/sound/isa/opti9xx
Takashi Iwai c990ab45cb ALSA: opti9xx: Fix conflicting driver object name
commit fb615499f0ad28ed74201c1cdfddf9e64e205424 upstream.

The recent commit to delay the release of kobject triggered NULL
dereferences of opti9xx drivers.  The cause is that all
snd-opti92x-ad1848, snd-opti92x-cs4231 and snd-opti93x drivers
register the PnP card driver with the very same name, and also
snd-opti92x-ad1848 and -cs4231 drivers register the ISA driver with
the same name, too.  When these drivers are built in, quick
"register-release-and-re-register" actions occur, and this results in
Oops because of the same name is assigned to the kobject.

The fix is simply to assign individual names.  As a bonus, by using
KBUILD_MODNAME, the patch reduces more lines than it adds.

The fix is based on the suggestion by Russell King.

Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-09-07 22:09:57 -07:00
..
Makefile [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-16 16:51:18 +02:00
miro.c ALSA: isa: remove __dev* attributes 2012-12-07 07:32:17 +01:00
opti92x-ad1848.c ALSA: opti9xx: Fix conflicting driver object name 2013-09-07 22:09:57 -07:00
opti92x-cs4231.c
opti93x.c