This is a note to let you know that I've just added the patch titled
Input - arizona-haptics: Fix double lock of dapm_mutex
to the 3.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-arizona-haptics-fix-double-lock-of-dapm_mutex.patch
and it can be found in the queue-3.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c4204960e9d0ba99459dbf1db918f99a45e7a62a Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 18 Feb 2014 15:22:12 +0000
Subject: Input - arizona-haptics: Fix double lock of dapm_mutex
From: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
commit c4204960e9d0ba99459dbf1db918f99a45e7a62a upstream.
snd_soc_dapm_sync takes the dapm_mutex internally, but we currently take
it externally as well. This patch fixes this.
Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/misc/arizona-haptics.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
--- a/drivers/input/misc/arizona-haptics.c
+++ b/drivers/input/misc/arizona-haptics.c
@@ -77,16 +77,14 @@ static void arizona_haptics_work(struct
return;
}
+ mutex_unlock(dapm_mutex);
+
ret = snd_soc_dapm_sync(arizona->dapm);
if (ret != 0) {
dev_err(arizona->dev, "Failed to sync DAPM: %d\n",
ret);
- mutex_unlock(dapm_mutex);
return;
}
-
- mutex_unlock(dapm_mutex);
-
} else {
/* This disable sequence will be a noop if already enabled */
mutex_lock_nested(dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
@@ -99,16 +97,15 @@ static void arizona_haptics_work(struct
return;
}
+ mutex_unlock(dapm_mutex);
+
ret = snd_soc_dapm_sync(arizona->dapm);
if (ret != 0) {
dev_err(arizona->dev, "Failed to sync DAPM: %d\n",
ret);
- mutex_unlock(dapm_mutex);
return;
}
- mutex_unlock(dapm_mutex);
-
ret = regmap_update_bits(arizona->regmap,
ARIZONA_HAPTICS_CONTROL_1,
ARIZONA_HAP_CTRL_MASK,
Patches currently in stable-queue which might be from ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx are
queue-3.13/asoc-wm8770-fix-wrong-number-of-enum-items.patch
queue-3.13/input-arizona-haptics-fix-double-lock-of-dapm_mutex.patch
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