tree 826810f4e37ffe5a315345842a399ad1135b36d6
parent 25336e8ae2d2fa64c9c4cc2c9c28f641134c9fa9
author Mengdong Lin <mengdong.lin@intel.com> 1362683465 -0500
committer Takashi Iwai <tiwai@suse.de> 1362644043 +0100

ALSA: hda - check NULL pointer when creating SPDIF PCM switch

If the new control cannot be created, this function will return to avoid
snd_hda_ctl_add dereferencing a NULL control pointer.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>