From b91f080f517cf9dd52023c11127a0ca33190e31a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 4 Nov 2008 08:43:08 +0100
Subject: [PATCH] ALSA: hda - Fix possible NULL dereference

Add NULL-check of the return value of snd_kctl_new1() before
accessing it.  Also, make a sanity NULL check to snd_BUG_ON()
for debugging only.

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