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Commit e076eb5c authored by Wang Xingchao's avatar Wang Xingchao Committed by Takashi Iwai
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ALSA: hda - check proper return value 



snd_hda_param_read() return value -1 means error, others are responses

Signed-off-by: default avatarWang Xingchao <xingchao.wang@intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 0f4ccbb0

sound/pci/hda/hda_proc.c

+1 −1
Original line number Diff line number Diff line
@@ -451,7 +451,7 @@ static void print_power_state(struct snd_info_buffer *buffer, 
	int sup = snd_hda_param_read(codec, nid, AC_PAR_POWER_STATE);

	int pwr = snd_hda_codec_read(codec, nid, 0,

				     AC_VERB_GET_POWER_STATE, 0);

	if (sup)

	if (sup != -1)

		snd_iprintf(buffer, "  Power states: %s\n",

			    bits_names(sup, names, ARRAY_SIZE(names)));