[alsa-devel] [PATCHv2 1/3] ASoC: codec: Simplify ASoC probe code.

[Lars-Peter Clausen]

On 02/28/2014 10:04 AM, Xiubo Li wrote:
> Signed-off-by: Xiubo Li <Li.Xiubo at freescale.com>
> ---
>
> @Mark, @Lars, @All,
>
> I have checked for each driver about the following issue from Lars:
>
> "Just removing the set_cache_io() call will not work for all
> drivers. There are some MFD child devices which use regmap from the parent
> device. So dev_get_regmap() will return NULL for those."
>
> And they are all fine for me but without testing.
>
> For the CODECs that using MFD will split into another patch.
>

Looks good in general, but try to build these kinds of changes with 
CONFIG_COMPILE_TEST=y and CONFIG_SND_SOC_ALL_CODECS=y before sending the 
patch. There are a lot of warnings about unused variables caused by this patch.

sound/soc/codecs/ad193x.c: In function 'ad193x_codec_probe':
sound/soc/codecs/ad193x.c:343:2: warning: 'ret' is used uninitialized in 
this function [-Wuninitialized]
sound/soc/codecs/adau1373.c: In function 'adau1373_probe':
sound/soc/codecs/adau1373.c:1379:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/adav80x.c: In function 'adav80x_probe':
sound/soc/codecs/adav80x.c:804:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/ak4535.c: In function 'ak4535_probe':
sound/soc/codecs/ak4535.c:392:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/ak4535.c:391:22: warning: unused variable 'ak4535' 
[-Wunused-variable]
sound/soc/codecs/ak4641.c: In function 'ak4641_probe':
sound/soc/codecs/ak4641.c:522:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/ak4642.c: In function 'ak4642_probe':
sound/soc/codecs/ak4642.c:468:6: warning: unused variable 'ret' [-Wunused-
sound/soc/codecs/ak4671.c: In function 'ak4671_probe':
sound/soc/codecs/ak4671.c:620:2: warning: 'ret' is used uninitialized in 
this function [-Wuninitialized]
sound/soc/codecs/cs42l52.c: In function 'cs42l52_probe':
sound/soc/codecs/cs42l52.c:1125:2: warning: 'ret' is used uninitialized in 
this function [-Wuninitialized]
sound/soc/codecs/cs42l73.c: In function 'cs42l73_probe':
sound/soc/codecs/cs42l73.c:1363:2: warning: 'ret' is used uninitialized in 
this function [-Wuninitialized]
sound/soc/codecs/da7210.c: In function 'da7210_probe':
sound/soc/codecs/da7210.c:1074:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/da7213.c: In function 'da7213_probe':
sound/soc/codecs/da7213.c:1396:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/da732x.c: In function 'da732x_probe':
sound/soc/codecs/da732x.c:1522:1: warning: label 'err' defined but not used 
[-Wunused-label]
sound/soc/codecs/da9055.c: In function 'da9055_probe':
sound/soc/codecs/da9055.c:1386:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/max9850.c: In function 'max9850_probe':
sound/soc/codecs/max9850.c:315:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/ml26124.c: In function 'ml26124_probe':
sound/soc/codecs/ml26124.c:590:23: warning: unused variable 'priv' 
[-Wunused-variable]
sound/soc/codecs/ml26124.c:589:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/rt5631.c: In function 'rt5631_probe':
sound/soc/codecs/rt5631.c:1573:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/rt5640.c: In function 'rt5640_probe':
sound/soc/codecs/rt5640.c:1939:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/ssm2518.c: In function 'ssm2518_probe':
sound/soc/codecs/ssm2518.c:652:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/ssm2518.c:651:18: warning: unused variable 'ssm2518' 
[-Wunused-variable]
sound/soc/codecs/sta32x.c: In function 'sta32x_probe':
sound/soc/codecs/sta32x.c:940:1: warning: label 'err' defined but not used 
[-Wunused-label]
sound/soc/codecs/sta529.c: In function 'sta529_probe':
sound/soc/codecs/sta529.c:326:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/sta529.c:325:17: warning: unused variable 'sta529' 
[-Wunused-variable]
sound/soc/codecs/tlv320aic23.c: In function 'tlv320aic23_probe':
sound/soc/codecs/tlv320aic23.c:562:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm8510.c: In function 'wm8510_probe':
sound/soc/codecs/wm8510.c:599:2: warning: 'ret' is used uninitialized in 
this function [-Wuninitialized]
sound/soc/codecs/wm8523.c: In function 'wm8523_probe':
sound/soc/codecs/wm8523.c:395:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm8728.c: In function 'wm8728_probe':
sound/soc/codecs/wm8728.c:236:2: warning: 'ret' is used uninitialized in 
this function [-Wuninitialized]
sound/soc/codecs/wm8900.c: In function 'wm8900_probe':
sound/soc/codecs/wm8900.c:1181:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm8903.c: In function 'wm8903_probe':
sound/soc/codecs/wm8903.c:1907:2: warning: 'ret' is used uninitialized in 
this function [-Wuninitialized]
sound/soc/codecs/wm8904.c: In function 'wm8904_probe':
sound/soc/codecs/wm8904.c:2051:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm8961.c: In function 'wm8961_probe':
sound/soc/codecs/wm8961.c:839:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm8978.c: In function 'wm8978_probe':
sound/soc/codecs/wm8978.c:978:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm8988.c: In function 'wm8988_probe':
sound/soc/codecs/wm8988.c:813:22: warning: unused variable 'wm8988' 
[-Wunused-variable]
sound/soc/codecs/wm8990.c: In function 'wm8990_probe':
sound/soc/codecs/wm8990.c:1292:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm8991.c: In function 'wm8991_probe':
sound/soc/codecs/wm8991.c:1251:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm8996.c: In function 'wm8996_probe':
sound/soc/codecs/wm8996.c:2679:1: warning: label 'err' defined but not used 
[-Wunused-label]
sound/soc/codecs/wm9081.c: In function 'wm9081_probe':
sound/soc/codecs/wm9081.c:1278:2: warning: 'ret' is used uninitialized in 
this function [-Wuninitialized]
sound/soc/codecs/wm9090.c: In function 'wm9090_probe':
sound/soc/codecs/wm9090.c:526:6: warning: unused variable 'ret' 
[-Wunused-variable]
sound/soc/codecs/wm9090.c:525:22: warning: unused variable 'wm9090' 
[-Wunused-variable]