[PATCH 3.18 021/151] ASoC: mioa701_wm9713: Fix speaker event

[Greg Kroah-Hartman]

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

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

From: Lars-Peter Clausen <lars@xxxxxxxxxx>

commit 7331ea474e9e7a348541c207bdb6aa518c6403f4 upstream.

Commit f6b2a04590bb ("ASoC: pxa: mioa701_wm9713: Convert to table based DAPM
setup") converted the driver to register the board level DAPM elements with
the card's DAPM context rather than the CODEC's DAPM context. The change
overlooked that the speaker widget event callback accesses the widget's
codec field which is only valid if the widget has been registered in a CODEC
DAPM context. This patch modifies the callback to take an alternative route
to get the CODEC.

Fixes: f6b2a04590bb ("ASoC: pxa: mioa701_wm9713: Convert to table based DAPM
setup")
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 sound/soc/pxa/mioa701_wm9713.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/pxa/mioa701_wm9713.c
+++ b/sound/soc/pxa/mioa701_wm9713.c
@@ -81,7 +81,7 @@ static int rear_amp_power(struct snd_soc
 static int rear_amp_event(struct snd_soc_dapm_widget *widget,
 			  struct snd_kcontrol *kctl, int event)
 {
-	struct snd_soc_codec *codec = widget->codec;
+	struct snd_soc_codec *codec = widget->dapm->card->rtd[0].codec;
 
 	return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event));
 }


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