From: Dan Carpenter Date: Thu, 24 Aug 2017 10:07:41 +0000 (+0300) Subject: ASoC: codecs: msm8916-wcd-analog: always true condition X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=56026714bd45fccda710114982789c5145285560;p=openwrt%2Fstaging%2Fblogic.git ASoC: codecs: msm8916-wcd-analog: always true condition 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 Signed-off-by: Mark Brown --- diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c index f834a639b350..cd4d60ef4c77 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 {