[bug report] ASoC: codecs: wcd938x: add capture dapm widgets

[Dan Carpenter]

Hello Srinivas Kandagatla,

The patch d5add08fcbce: "ASoC: codecs: wcd938x: add capture dapm
widgets" from Jun 9, 2021, leads to the following static checker
warning:

	sound/soc/codecs/wcd938x.c:2189 wcd938x_tx_channel_config()
	error: uninitialized symbol 'reg'.

sound/soc/codecs/wcd938x.c
  2165  static void wcd938x_tx_channel_config(struct snd_soc_component *component,
  2166                                       int channel, int mode)
  2167  {
  2168          int reg, mask;
  2169  
  2170          switch (channel) {
  2171          case 0:
  2172                  reg = WCD938X_ANA_TX_CH2;
  2173                  mask = WCD938X_HPF1_INIT_MASK;
  2174                  break;
  2175          case 1:
  2176                  reg = WCD938X_ANA_TX_CH2;
  2177                  mask = WCD938X_HPF2_INIT_MASK;
  2178                  break;
  2179          case 2:
  2180                  reg = WCD938X_ANA_TX_CH4;
  2181                  mask = WCD938X_HPF3_INIT_MASK;
  2182                  break;
  2183          case 3:
  2184                  reg = WCD938X_ANA_TX_CH4;
  2185                  mask = WCD938X_HPF4_INIT_MASK;
  2186                  break;

We could add a default case?

default:
	return;

  2187          }
  2188  
  2189          snd_soc_component_write_field(component, reg, mask, mode);
  2190  }


regards,
dan carpenter