tree c790532224128c5cb9a53f71fb1c34c83bc13784
parent ec1f43c83b9df3052209e0c7e7d936e15251c867
author Markus Elfring <elfring@users.sourceforge.net> 1502563816 +0200
committer Takashi Iwai <tiwai@suse.de> 1502573748 +0200

ALSA: mpu401: Adjust four checks for null pointers

The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written !…

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>