ALSA: hda - Add exception for volume-knob in snd_hda_get_connections()
Volume-knob widgets may have connections even if they have no CONN_LIST
cap bit. Allow the query exceptionally in snd_hda_get_connections().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index b8c656c..3a603cd 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -301,12 +301,15 @@
unsigned int parm;
int i, conn_len, conns;
unsigned int shift, num_elems, mask;
+ unsigned int wcaps;
hda_nid_t prev_nid;
if (snd_BUG_ON(!conn_list || max_conns <= 0))
return -EINVAL;
- if ((get_wcaps(codec, nid) & AC_WCAP_CONN_LIST) == 0) {
+ wcaps = get_wcaps(codec, nid);
+ if (!(wcaps & AC_WCAP_CONN_LIST) &&
+ get_wcaps_type(wcaps) != AC_WID_VOL_KNB) {
snd_printk(KERN_WARNING "hda_codec: "
"connection list not available for 0x%x\n", nid);
return -EINVAL;