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[ALSA] hda-codec - Don't query widget parameter for invalid NID
authorTakashi Iwai <tiwai@suse.de>
Tue, 22 Jan 2008 14:37:13 +0000 (15:37 +0100)
committerJaroslav Kysela <perex@perex.cz>
Thu, 31 Jan 2008 16:30:10 +0000 (17:30 +0100)
commitdca008f367586f73bd1c766836e4f7a38ce9814f
tree174bdb00bf674b21251df8e6c1a2ecc30f08ddd5tree | snapshot (tar.gz zip)
parent0ef6ce7b6acddc3dc9e898125b3bada98a21130acommit | diff
[ALSA] hda-codec - Don't query widget parameter for invalid NID

Don't query a widget parameter for an invalid NID in get_wcaps() but
rather returns zero (i.e. no attribute).
The read to an non-existing widget may result in a fatal codec
communication error.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
sound/pci/hda/hda_local.h diff | blob | blame | history