[alsa-devel] [PATCH 15/15] ASoC: pxa: tosa: Update locking around use of DAPM pin API

[Charles Keepax]

The pin updates in this driver look like they are intended to be done
atomically, update to do so.

Signed-off-by: Charles Keepax <ckeepax at opensource.wolfsonmicro.com>
---
 sound/soc/pxa/tosa.c |   26 +++++++++++++++-----------
 1 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index 1d9c2ed..64f9620 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -48,29 +48,33 @@ static void tosa_ext_control(struct snd_soc_codec *codec)
 {
 	struct snd_soc_dapm_context *dapm = &codec->dapm;
 
+	mutex_lock(&dapm->card->dapm_mutex);
+
 	/* set up jack connection */
 	switch (tosa_jack_func) {
 	case TOSA_HP:
-		snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
-		snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
-		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
+		snd_soc_dapm_disable_pin_locked(dapm, "Mic (Internal)");
+		snd_soc_dapm_enable_pin_locked(dapm, "Headphone Jack");
+		snd_soc_dapm_disable_pin_locked(dapm, "Headset Jack");
 		break;
 	case TOSA_MIC_INT:
-		snd_soc_dapm_enable_pin(dapm, "Mic (Internal)");
-		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
-		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
+		snd_soc_dapm_enable_pin_locked(dapm, "Mic (Internal)");
+		snd_soc_dapm_disable_pin_locked(dapm, "Headphone Jack");
+		snd_soc_dapm_disable_pin_locked(dapm, "Headset Jack");
 		break;
 	case TOSA_HEADSET:
-		snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
-		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
-		snd_soc_dapm_enable_pin(dapm, "Headset Jack");
+		snd_soc_dapm_disable_pin_locked(dapm, "Mic (Internal)");
+		snd_soc_dapm_disable_pin_locked(dapm, "Headphone Jack");
+		snd_soc_dapm_enable_pin_locked(dapm, "Headset Jack");
 		break;
 	}
 
 	if (tosa_spk_func == TOSA_SPK_ON)
-		snd_soc_dapm_enable_pin(dapm, "Speaker");
+		snd_soc_dapm_enable_pin_locked(dapm, "Speaker");
 	else
-		snd_soc_dapm_disable_pin(dapm, "Speaker");
+		snd_soc_dapm_disable_pin_locked(dapm, "Speaker");
+
+	mutex_unlock(&dapm->card->dapm_mutex);
 
 	snd_soc_dapm_sync(dapm);
 }
-- 
1.7.2.5