tree 508e27908042763bc2f2c4debbea415e6fe4ff92
parent 9492837a6f54b069e13e40e3c89898bb8837a386
author Jody Bruchon <jody@nctritech.com> 1265471186 -0500
committer Takashi Iwai <tiwai@suse.de> 1265747613 +0100

ALSA: hda-intel: Avoid divide by zero crash

On my AMD780V chipset, hda_intel.c can crash the kernel with a divide by
zero
for as-yet unknown reasons. A simple check for zero prevents it, though
the problem that causes it remains. Since the workaround is harmless and
won't affect anyone except victims of this bug, it should be safe;
moreover,
because this crash can be triggered by a user-mode application, there are
denial of service implications on the systems affected by the bug without
the patch.

Signed-off-by: Jody Bruchon <jody@nctritech.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>