From 4bd3a1f415affa4729856dca7e39c5093a9a954f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 3 Dec 2010 17:25:57 +0800 Subject: [PATCH 1/1] ASoC: Fix inconsistent meaning of default case while checking alc5623->id 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 Acked-by: Arnaud Patard Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- sound/soc/codecs/alc5623.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/alc5623.c b/sound/soc/codecs/alc5623.c index 9783e7e2eb93..4f377c9e868d 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); -- 2.34.1