From 5803a326465e38ee3cab8badbd8947732a8277f5 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 21 Feb 2012 11:59:45 +0100
Subject: [PATCH] ALSA: hda/realtek - Fix possible Oops with NULL input_mux

When BIOS is damn crazy and gives no pin-config at all, the driver might
lead to a NULL dereference.  Let's add a NULL check for such a case.

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