diff options
| author | Wang Xingchao <[email protected]> | 2012-06-07 16:52:07 +0800 |
|---|---|---|
| committer | Takashi Iwai <[email protected]> | 2012-06-07 11:40:58 +0200 |
| commit | e076eb5c952c0f724980b44a77902a2ff93d098c (patch) | |
| tree | a6ed25794bce0163c1998df129ea0c607932d83d | |
| parent | 0f4ccbb02533276ab750961e150aeee06492ed7c (diff) | |
ALSA: hda - check proper return value
snd_hda_param_read() return value -1 means error, others are responses
Signed-off-by: Wang Xingchao <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
| -rw-r--r-- | sound/pci/hda/hda_proc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_proc.c b/sound/pci/hda/hda_proc.c index 1dd9dbeeef6e..7e46258fc700 100644 --- a/sound/pci/hda/hda_proc.c +++ b/sound/pci/hda/hda_proc.c @@ -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))); |