diff options
| author | Takashi Iwai <tiwai@suse.de> | 2008-01-22 15:37:13 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:30:10 +0100 |
| commit | dca008f367586f73bd1c766836e4f7a38ce9814f (patch) | |
| tree | 174bdb00bf674b21251df8e6c1a2ecc30f08ddd5 | |
| parent | 0ef6ce7b6acddc3dc9e898125b3bada98a21130a (diff) | |
[ALSA] hda-codec - Don't query widget parameter for invalid NID
Don't query a widget parameter for an invalid NID in get_wcaps() but
rather returns zero (i.e. no attribute).
The read to an non-existing widget may result in a fatal codec
communication error.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
| -rw-r--r-- | sound/pci/hda/hda_local.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index ddc61a1d115..448c4ce816c 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -370,7 +370,7 @@ static inline u32 get_wcaps(struct hda_codec *codec, hda_nid_t nid) { if (nid < codec->start_nid || nid >= codec->start_nid + codec->num_nodes) - return snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP); + return 0; return codec->wcaps[nid - codec->start_nid]; } |