ALSA: hda - Don't access invalid substream in proc file
authorTakashi Iwai <tiwai@suse.de>
Thu, 12 Nov 2009 08:50:28 +0000 (09:50 +0100)
committerTakashi Iwai <tiwai@suse.de>
Thu, 12 Nov 2009 08:50:28 +0000 (09:50 +0100)
commitf8b7163529831ee3ad6a1aeaa0f1256cb527008d
tree0f86b5420e6cb1efff31caa0fc6f3ae59d4cdb9d
parenta2f6309e8392e2c14c04594fca8b4876c8c9bc36
ALSA: hda - Don't access invalid substream in proc file

The commit e3303235209c0496b490e10ab131e72a9568c153
"ALSA: hda - proc - show which I/O NID is associated to PCM device"
introduces the access to substream pointer.  But, PCMs may have no
substreams in one or both directions, and this results in NULL
dereference.  Also, print the first substream number doesn't make
sense.

This patch removes the access to the substream pointer, and reformat
to fit to the standard coding style.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/hda_proc.c