From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 22 Jan 2008 14:37:13 +0000 (+0100)
Subject: [ALSA] hda-codec - Don't query widget parameter for invalid NID
X-Git-Tag: v2.6.25-rc1~1127^2~52
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dca008f367586f73bd1c766836e4f7a38ce9814f;p=pandora-kernel.git

[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>
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