linux-kernel - [GIT PULL] sound fixes for 4.12

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Message-ID: <s5hd19lertr.wl-tiwai@suse.de>
Date:   Fri, 30 Jun 2017 11:40:48 +0200
From:   Takashi Iwai <tiwai@...e.de>
To:     Linus Torvalds <torvalds@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org
Subject: [GIT PULL] sound fixes for 4.12

Linus,

please pull sound fixes for v4.12 from:

  git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git tags/sound-4.12

The topmost commit is d94815f917da770d42c377786dc428f542e38f71

----------------------------------------------------------------

sound fixes for 4.12

Two last-minute HD-audio fixes.

----------------------------------------------------------------

Hui Wang (1):
      ALSA: hda - set input_path bitmap to zero after moving it to new place

Takashi Iwai (1):
      ALSA: hda - Fix endless loop of codec configure

---
 sound/pci/hda/hda_codec.h      | 2 ++
 sound/pci/hda/hda_controller.c | 8 ++++++--
 sound/pci/hda/hda_generic.c    | 1 +
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index d6fb2d5d01a7..60ce1cfc300f 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -295,6 +295,8 @@ struct hda_codec {
 
 #define list_for_each_codec(c, bus) \
 	list_for_each_entry(c, &(bus)->core.codec_list, core.list)
+#define list_for_each_codec_safe(c, n, bus)				\
+	list_for_each_entry_safe(c, n, &(bus)->core.codec_list, core.list)
 
 /* snd_hda_codec_read/write optional flags */
 #define HDA_RW_NO_RESPONSE_FALLBACK	(1 << 0)
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 3715a5725613..1c60beb5b70a 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -1337,8 +1337,12 @@ EXPORT_SYMBOL_GPL(azx_probe_codecs);
 /* configure each codec instance */
 int azx_codec_configure(struct azx *chip)
 {
-	struct hda_codec *codec;
-	list_for_each_codec(codec, &chip->bus) {
+	struct hda_codec *codec, *next;
+
+	/* use _safe version here since snd_hda_codec_configure() deregisters
+	 * the device upon error and deletes itself from the bus list.
+	 */
+	list_for_each_codec_safe(codec, next, &chip->bus) {
 		snd_hda_codec_configure(codec);
 	}
 	return 0;
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 2842c82363c0..71545b56b4c8 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -3174,6 +3174,7 @@ static int check_dyn_adc_switch(struct hda_codec *codec)
 						spec->input_paths[i][nums]);
 					spec->input_paths[i][nums] =
 						spec->input_paths[i][n];
+					spec->input_paths[i][n] = 0;
 				}
 			}
 			nums++;