diff options
| author | Takashi Iwai <tiwai@suse.de> | 2013-08-27 12:03:01 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-07 21:58:14 -0700 |
| commit | aa5189165d9897c84b43d762618ee8924c5f9c9e (patch) | |
| tree | 6f2a73fffd00914fe07e96ec47f54f92c42e5a4d /arch | |
| parent | e446ef9608a07af0cf07aa887ddf37224fd345d8 (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 'arch')
0 files changed, 0 insertions, 0 deletions