linux-kernel - [PATCH 3.12 008/123] ALSA: hda - Treat zero connection as non-error

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Date:	Tue,  4 Aug 2015 16:39:12 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Takashi Iwai <tiwai@...e.de>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 008/123] ALSA: hda - Treat zero connection as non-error

From: Takashi Iwai <tiwai@...e.de>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 4758fed912d7cd0ba53d2694e89b884114de6580 upstream.

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@...e.de>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 sound/pci/hda/hda_codec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 931bd7386326..12f1dd5a7abb 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -567,7 +567,7 @@ 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;
-- 
2.5.0

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