tree 44749468fa4996afa2cf33337be62f71ea447df8
parent 6d16941aee6eb468c5a5cc78ecbaf840f3e16df5
author Takashi Iwai <tiwai@suse.de> 1412762918 +0200
committer Takashi Iwai <tiwai@suse.de> 1412762918 +0200

ALSA: Allow pass NULL dev for snd_pci_quirk_lookup()

Add a NULL check in snd_pci_quirk_lookup() so that NULL can be passed
as a pci_dev pointer.  This fixes the possible NULL dereferences in
HD-audio drivers.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>