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(parent: 5ab775c) | patch
ALSA: hda: check make_exec_verb() return value
authorGreg Thelen <gthelen@google.com>
Mon, 13 Jun 2011 14:45:45 +0000 (07:45 -0700)
committerTakashi Iwai <tiwai@suse.de>
Mon, 13 Jun 2011 15:52:06 +0000 (17:52 +0200)
commit9857edfd4db0dc879f786e042f24900fd683b0ac
treea29500b8a2d1f50b241cf9478a8cfe8e02f1b000tree | snapshot
parent5ab775c7078533de0032fba3619d24e5cb9a6a34commit | diff
ALSA: hda: check make_exec_verb() return value

If given a -1 cmd parameter then make_exec_verb() returns -1 without
setting the res output value.

Prior to this change snd_hda_codec_read() assumed that make_exec_verb()
unconditionally set res regardless of the cmd value.

This change explicitly checks the make_exec_verb() return value before
consuming the potentially unset res value.

Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/hda_codec.c diff | blob | history
Domain: System / Kernel;