ALSA: hda - check proper return value
authorWang Xingchao <xingchao.wang@intel.com>
Thu, 7 Jun 2012 08:52:07 +0000 (16:52 +0800)
committerTakashi Iwai <tiwai@suse.de>
Thu, 7 Jun 2012 09:40:58 +0000 (11:40 +0200)
snd_hda_param_read() return value -1 means error, others are responses

Signed-off-by: Wang Xingchao <xingchao.wang@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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