ALSA: hda - Don't query connections for widgets have no connections
Fixes the kernel warnings with IDT codecs like
hda_codec: connection list not available for 0x1e
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 05fcd60..a2f57e3 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -3408,6 +3408,9 @@
hda_nid_t conn[HDA_MAX_NUM_INPUTS];
int i, nums;
+ if (!(get_wcaps(codec, mux) & AC_WCAP_CONN_LIST))
+ return -1;
+
nums = snd_hda_get_connections(codec, mux, conn, ARRAY_SIZE(conn));
for (i = 0; i < nums; i++)
if (conn[i] == nid)