[PATCH] 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 --- sound/soc/codecs/cs35l56.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c index 90fc79b5666d..d97b465f0d3c 100644 --- a/sound/soc/codecs/cs35l56.c +++ b/sound/soc/codecs/cs35l56.c @@ -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)
On 24/03/2023 02:23, Jiapeng Chong wrote:
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
sound/soc/codecs/cs35l56.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cs35l56.c b/sound/soc/codecs/cs35l56.c index 90fc79b5666d..d97b465f0d3c 100644 --- a/sound/soc/codecs/cs35l56.c +++ b/sound/soc/codecs/cs35l56.c @@ -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)
Reviewed-by: Richard Fitzgerald rf@opensource.cirrus.com
On Fri, 24 Mar 2023 10:23:03 +0800, Jiapeng Chong wrote:
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; }
[...]
Applied to
broonie/sound.git for-next
Thanks!
[1/1] ASoC: cs35l56: Fix an unsigned comparison which can never be negative commit: ab76c891a687ae871f7e76dbf9bc3a0e32b53423
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
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Thanks, Mark
participants (3)
-
Jiapeng Chong -
Mark Brown -
Richard Fitzgerald