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ASoC: cs35l56: Fix an unsigned comparison which can never be negative

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The variable 'rv' is defined as unsigned type, so the following if
statement is invalid, we can modify the type of rv to int.
if (rv < 0) {
	dev_err(cs35l56->dev, "irq: failed to get pm_runtime:
		%d\n", rv);
	goto err_unlock;
}

./sound/soc/codecs/cs35l56.c:333:5-7: WARNING: Unsigned expression compared with zero: rv < 0.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4599
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230324022303.121485-1-jiapeng.chong@linux.alibaba.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jiapeng Chong 2023-03-24 10:23:03 +08:00 committed by Mark Brown
parent 92405802a7
commit ab76c891a6
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1 changed files with 3 additions and 1 deletions
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sound/soc/codecs/cs35l56.c
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@ -321,7 +321,9 @@ irqreturn_t cs35l56_irq(int irq, void *data)
struct cs35l56_private *cs35l56 = data;
unsigned int status1 = 0, status8 = 0, status20 = 0;
unsigned int mask1, mask8, mask20;
unsigned int rv, val;
unsigned int val;
int rv;
irqreturn_t ret = IRQ_NONE;
if (!cs35l56->init_done)