ALSA: pcm: Add fallthru comments
authorTakashi Iwai <tiwai@suse.de>
Mon, 28 Oct 2013 11:40:46 +0000 (12:40 +0100)
committerTakashi Iwai <tiwai@suse.de>
Tue, 29 Oct 2013 10:37:35 +0000 (11:37 +0100)
Just to improve readability.
Spotted by coverity CID 115002 and 115003.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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