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authorLuka Perkov <luka.perkov@sartura.hr>2016-06-23 13:57:21 +0200
committerGitHub <noreply@github.com>2016-06-23 13:57:21 +0200
commit282b917e47d9ae5017e1e426face9b75cb7aabd0 (patch)
tree3284ca2d20d9c8d7a4563c6446675c1ecf3feac2 /target/linux/brcm2708/patches-4.4/0249-bcm2835-do-not-require-substream-for-accessing-chmap.patch
parent34d432b05312de6d9575c559db8209809489096d (diff)
parent441a9c879ba6562ea9f431cf33bbb0c0400d5fd0 (diff)
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Merge pull request #11 from wigyori/master
pull req for 4.4.12, ar71xx/mediatek updates, package upgrades
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0249-bcm2835-do-not-require-substream-for-accessing-chmap.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0249-bcm2835-do-not-require-substream-for-accessing-chmap.patch51
1 files changed, 51 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0249-bcm2835-do-not-require-substream-for-accessing-chmap.patch b/target/linux/brcm2708/patches-4.4/0249-bcm2835-do-not-require-substream-for-accessing-chmap.patch
new file mode 100644
index 0000000000..b353965501
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0249-bcm2835-do-not-require-substream-for-accessing-chmap.patch
@@ -0,0 +1,51 @@
+From 367f4ce11d5588d680ae50c405b1a9afa591a550 Mon Sep 17 00:00:00 2001
+From: wm4 <wm4@nowhere>
+Date: Tue, 19 Apr 2016 16:08:35 +0200
+Subject: [PATCH 249/381] bcm2835: do not require substream for accessing chmap
+ ctl
+
+Fixes alsasctl store/restore operation.
+---
+ sound/arm/bcm2835-ctl.c | 10 +---------
+ 1 file changed, 1 insertion(+), 9 deletions(-)
+
+--- a/sound/arm/bcm2835-ctl.c
++++ b/sound/arm/bcm2835-ctl.c
+@@ -489,8 +489,6 @@ static int snd_bcm2835_chmap_ctl_get(str
+ {
+ struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
+ bcm2835_chip_t *chip = info->private_data;
+- unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+- struct snd_pcm_substream *substream = snd_pcm_chmap_substream(info, idx);
+ struct cea_channel_speaker_allocation *ch = NULL;
+ int res = 0;
+ int cur = 0;
+@@ -499,11 +497,6 @@ static int snd_bcm2835_chmap_ctl_get(str
+ if (mutex_lock_interruptible(&chip->audio_mutex))
+ return -EINTR;
+
+- if (!substream || !substream->runtime) {
+- res = -ENODEV;
+- goto unlock;
+- }
+-
+ for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
+ if (channel_allocations[i].ca_index == chip->cea_chmap)
+ ch = &channel_allocations[i];
+@@ -521,7 +514,6 @@ static int snd_bcm2835_chmap_ctl_get(str
+ while (cur < 8)
+ ucontrol->value.integer.value[cur++] = SNDRV_CHMAP_NA;
+
+-unlock:
+ mutex_unlock(&chip->audio_mutex);
+ return res;
+ }
+@@ -541,7 +533,7 @@ static int snd_bcm2835_chmap_ctl_put(str
+ return -EINTR;
+
+ if (!substream || !substream->runtime) {
+- res = -ENODEV;
++ /* ignore and return success for the sake of alsactl */
+ goto unlock;
+ }
+