In alc5623_i2c_probe(), the default case for checking alc5623->id behaves the same as case 0x23. However, In alc5623_probe() the default case for checking alc5623->id becomes to be the same as case 0x21. This makes the meaning of default case inconsistent.

Since we have checked codec id in alc5623_i2c_probe() by comparing vid2 with id->driver_data, it is not possible to run into the default case now.

In case we may add more supported devices to alc5623_i2c_table in the future, this patch changes the default case return -EINVAL to let people know that they should not run into this case. They should also add a new case accordingly for the new id.

Signed-off-by: Axel Lin axel.lin@gmail.com ---

Or alternatively, we can simply remove the default cases.

Axel

sound/soc/codecs/alc5623.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/alc5623.c b/sound/soc/codecs/alc5623.c index 9783e7e..4f377c9 100644 --- a/sound/soc/codecs/alc5623.c +++ b/sound/soc/codecs/alc5623.c @@ -925,7 +925,6 @@ static int alc5623_probe(struct snd_soc_codec *codec) }

switch (alc5623->id) { - default: case 0x21: snd_soc_add_controls(codec, rt5621_vol_snd_controls, ARRAY_SIZE(rt5621_vol_snd_controls)); @@ -938,6 +937,8 @@ static int alc5623_probe(struct snd_soc_codec *codec) snd_soc_add_controls(codec, alc5623_vol_snd_controls, ARRAY_SIZE(alc5623_vol_snd_controls)); break; + default: + return -EINVAL; }

snd_soc_add_controls(codec, alc5623_snd_controls, @@ -950,7 +951,6 @@ static int alc5623_probe(struct snd_soc_codec *codec) snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));

switch (alc5623->id) { - default: case 0x21: case 0x22: snd_soc_dapm_new_controls(dapm, alc5623_dapm_amp_widgets, @@ -962,6 +962,8 @@ static int alc5623_probe(struct snd_soc_codec *codec) snd_soc_dapm_add_routes(dapm, intercon_spk, ARRAY_SIZE(intercon_spk)); break; + default: + return -EINVAL; }

return ret; @@ -1039,10 +1041,12 @@ static int alc5623_i2c_probe(struct i2c_client *client, case 0x22: alc5623_dai.name = "alc5622-hifi"; break; - default: case 0x23: alc5623_dai.name = "alc5623-hifi"; break; + default: + kfree(alc5623); + return -EINVAL; }

i2c_set_clientdata(client, alc5623);