ASoC: omap: Check regulator enable for DAC on Pandora

This will probably never fail but it's better style.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/sound/soc/omap/omap3pandora.c b/sound/soc/omap/omap3pandora.c
index 805512f2555a..10ced9d2e0de 100644
--- a/sound/soc/omap/omap3pandora.c
+++ b/sound/soc/omap/omap3pandora.c
@@ -80,12 +80,18 @@ static int omap3pandora_hw_params(struct snd_pcm_substream *substream,
 static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
         struct snd_kcontrol *k, int event)
 {
+        int ret;
+
         /*
          * The PCM1773 DAC datasheet requires 1ms delay between switching
          * VCC power on/off and /PD pin high/low
          */
         if (SND_SOC_DAPM_EVENT_ON(event)) {
-                regulator_enable(omap3pandora_dac_reg);
+                ret = regulator_enable(omap3pandora_dac_reg);
+                if (ret) {
+                        dev_err(w->dapm.dev, "Failed to power DAC: %d\n", ret);
+                        return ret;
+                }
                 mdelay(1);
                 gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1);
         } else {