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

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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GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 1 deletions
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4
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; struct cs35l56_private *cs35l56 = data;
unsigned int status1 = 0, status8 = 0, status20 = 0; unsigned int status1 = 0, status8 = 0, status20 = 0;
unsigned int mask1, mask8, mask20; unsigned int mask1, mask8, mask20;
unsigned int rv, val; unsigned int val;
int rv;
irqreturn_t ret = IRQ_NONE; irqreturn_t ret = IRQ_NONE;
if (!cs35l56->init_done) if (!cs35l56->init_done)