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| author | Takashi Iwai <tiwai@suse.de> | 2013-08-27 06:03:01 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-08 01:09:57 -0400 |
| commit | c990ab45cb4fda0767b196f4303372bdad4f9f7a (patch) | |
| tree | cb050fac496055da6dd7f55c4d9c3d0f07e4ed06 /kernel/async.c | |
| parent | 35133cc34699a77d66a26f6a115b275a38868127 (diff) | |
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>
Diffstat (limited to 'kernel/async.c')
0 files changed, 0 insertions, 0 deletions