ASoC: Do not update the cache if write to hardware failed

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c
index ee4fb20..d2c2430 100644 (file)
--- a/sound/soc/codecs/tpa6130a2.c
+++ b/sound/soc/codecs/tpa6130a2.c
@@ -78,8 +78,10 @@ static int tpa6130a2_i2c_write(int reg, u8 value)
 
        if (data->power_state) {
                val = i2c_smbus_write_byte_data(tpa6130a2_client, reg, value);
-               if (val < 0)
+               if (val < 0) {
                        dev_err(&tpa6130a2_client->dev, "Write failed\n");
+                       return val;
+               }
        }
 
        /* Either powered on or off, we save the context */