ASoC: dwc: fix support for more than two channels

There were missing break statements so everything used
TWO_CHANNEL_SUPPORT.

Also I added a return statement to silence a GCC warning:

	sound/soc/dwc/designware_i2s.c: In function ‘dw_i2s_hw_params’:
	sound/soc/dwc/designware_i2s.c:236:32: warning: ‘ch_reg’ may be
		used uninitialized in this function
		[-Wmaybe-uninitialized]

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c
index 1aa51300c564..deb30d59965e 100644
--- a/sound/soc/dwc/designware_i2s.c
+++ b/sound/soc/dwc/designware_i2s.c
@@ -210,15 +210,19 @@ static int dw_i2s_hw_params(struct snd_pcm_substream *substream,
         switch (config->chan_nr) {
         case EIGHT_CHANNEL_SUPPORT:
                 ch_reg = 3;
+                break;
         case SIX_CHANNEL_SUPPORT:
                 ch_reg = 2;
+                break;
         case FOUR_CHANNEL_SUPPORT:
                 ch_reg = 1;
+                break;
         case TWO_CHANNEL_SUPPORT:
                 ch_reg = 0;
                 break;
         default:
                 dev_err(dev->dev, "channel not supported\n");
+                return -EINVAL;
         }
 
         i2s_disable_channels(dev, substream->stream);