[ALSA] hda-codec - Make the mixer capability check more robust
In some cases, mixer elements return -EINVAL because it couldn't
obtain proper amp_cap bits. The patch improves the robustness,
trying the amp_cap query again in such a case.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 14649d5..8e89d56 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -707,7 +707,8 @@
direction == HDA_OUTPUT ?
AC_PAR_AMP_OUT_CAP :
AC_PAR_AMP_IN_CAP);
- info->status |= INFO_AMP_CAPS;
+ if (info->amp_caps)
+ info->status |= INFO_AMP_CAPS;
}
return info->amp_caps;
}