Fix the warnings when using the W=1 compiler flag.
sound/soc/codecs/tlv320adcx140.c: In function ‘adcx140_reset’: sound/soc/codecs/tlv320adcx140.c:570:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] 570 | int ret = 0; | ^~~
This was set but only used in case where the reset GPIO is not defined. Have the function return the value of ret.
sound/soc/codecs/tlv320adcx140.c: In function ‘adcx140_codec_probe’: sound/soc/codecs/tlv320adcx140.c:778:18: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 778 | if (bias_source < ADCX140_MIC_BIAS_VAL_VREF || | ^ sound/soc/codecs/tlv320adcx140.c:789:18: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] 789 | if (vref_source < ADCX140_MIC_BIAS_VREF_275V ||
This condition will not occur since if the dt property is not set then the *_source variable is set to the default value. So there is no way that *_source can be less then 0. Which is what each #define is set to. The code just needs to make sure that the dt property is not out of the upper bounds.
Reported-by: kbuild test robot lkp@intel.com Signed-off-by: Dan Murphy dmurphy@ti.com --- sound/soc/codecs/tlv320adcx140.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c index 472d759ba8a3..2fe0df3b7550 100644 --- a/sound/soc/codecs/tlv320adcx140.c +++ b/sound/soc/codecs/tlv320adcx140.c @@ -582,7 +582,7 @@ static int adcx140_reset(struct adcx140_priv *adcx140) /* 8.4.2: wait >= 10 ms after entering sleep mode. */ usleep_range(10000, 100000);
- return 0; + return ret; }
static int adcx140_hw_params(struct snd_pcm_substream *substream, @@ -772,8 +772,7 @@ static int adcx140_codec_probe(struct snd_soc_component *component) if (ret) bias_source = ADCX140_MIC_BIAS_VAL_VREF;
- if (bias_source < ADCX140_MIC_BIAS_VAL_VREF || - bias_source > ADCX140_MIC_BIAS_VAL_AVDD) { + if (bias_source > ADCX140_MIC_BIAS_VAL_AVDD) { dev_err(adcx140->dev, "Mic Bias source value is invalid\n"); return -EINVAL; } @@ -783,8 +782,7 @@ static int adcx140_codec_probe(struct snd_soc_component *component) if (ret) vref_source = ADCX140_MIC_BIAS_VREF_275V;
- if (vref_source < ADCX140_MIC_BIAS_VREF_275V || - vref_source > ADCX140_MIC_BIAS_VREF_1375V) { + if (vref_source > ADCX140_MIC_BIAS_VREF_1375V) { dev_err(adcx140->dev, "Mic Bias source value is invalid\n"); return -EINVAL; }