ALSA: hda - Treat zero connection as non-error

The zero-length connection list happens so often on Haswell HDMI, and
it results in warning messages like
    ALSA: hda_codec: invalid CONNECT_LIST verb 5[1]:0
at each time the codec resumes from the power-save, which is fairly
annoying.

Since this is no real error, make it shown only in the verbose debug
mode.

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 68801ba..a1632f4 100644 (file)
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -565,7 +565,7 @@ int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
                range_val = !!(parm & (1 << (shift-1))); /* ranges */
                val = parm & mask;
                if (val == 0 && null_count++) {  /* no second chance */
-                       snd_printk(KERN_WARNING "hda_codec: "
+                       snd_printdd("hda_codec: "
                                   "invalid CONNECT_LIST verb %x[%i]:%x\n",
                                    nid, i, parm);
                        return 0;