On Thursday 24 August 2017 03:37 PM, Dan Carpenter wrote:
Static checkers complain that unsigned int val is always >= 0. The
context is that snd_soc_read() returns -1U on error. This is harmless
because we're checking that CDC_A_MBHC_RESULT_1_BTN_RESULT_MASK is not
set, and it will always be set for -1U. I could have just removed the
check against -1 but I preserved it because I thought it helped with
readability.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Arvind Yadav<arvind.yadav.cs@xxxxxxxxx
<mailto:arvind.yadav.cs@xxxxxxxxx>>
diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c
index 4aa878d29098..549c269acc7d 100644
--- a/sound/soc/codecs/msm8916-wcd-analog.c
+++ b/sound/soc/codecs/msm8916-wcd-analog.c
@@ -949,7 +949,7 @@ static irqreturn_t mbhc_btn_release_irq_handler(int irq, void *arg)
u32 val = snd_soc_read(codec, CDC_A_MBHC_RESULT_1);
/* check if its BTN0 thats released */
- if ((val >= 0) && !(val & CDC_A_MBHC_RESULT_1_BTN_RESULT_MASK))
+ if ((val != -1) && !(val & CDC_A_MBHC_RESULT_1_BTN_RESULT_MASK))
priv->mbhc_btn0_pressed = false;
} else {
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