diff mbox series

[1/2] fixes warning

Message ID 20230804115121.34035-1-coolrrsh@gmail.com (mailing list archive)
State Superseded
Headers show
Series [1/2] fixes warning | expand

Commit Message

coolrrsh@gmail.com Aug. 4, 2023, 11:51 a.m. UTC 
From: Rajeshwar R Shinde <coolrrsh@gmail.com>

drivers/spi/spi-mpc512x-psc.c:493:5-13:
WARNING: Unsigned expression compared with zero: mps -> irq < 0

Signed-off-by: Rajeshwar R Shinde <coolrrsh@gmail.com>
---
 drivers/spi/spi-mpc512x-psc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Mark Brown Aug. 4, 2023, 11:57 a.m. UTC | #1 
On Fri, Aug 04, 2023 at 05:21:20PM +0530, coolrrsh@gmail.com wrote:
> From: Rajeshwar R Shinde <coolrrsh@gmail.com>
> 
> drivers/spi/spi-mpc512x-psc.c:493:5-13:
> WARNING: Unsigned expression compared with zero: mps -> irq < 0

Please submit patches using subject lines reflecting the style for the
subsystem, this makes it easier for people to identify relevant patches.
Look at what existing commits in the area you're changing are doing and
make sure your subject lines visually resemble what they're doing.
There's no need to resubmit to fix this alone.

>  	mps->irq = platform_get_irq(pdev, 0);
> -	if (mps->irq < 0)
> +	if ((int)mps->irq < 0)
>  		return mps->irq;

Casts are almost always the wrong choice.  If the issue is that the
value is unsigned and can't be negative casting it to signed isn't going
to help, though here possibly the type of the variable is wrong.
diff mbox series

Patch

diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index 99aeef2..50a4f31 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -490,7 +490,7 @@  static int mpc512x_psc_spi_of_probe(struct platform_device *pdev)
 		(struct mpc512x_psc_fifo *)(tempp + sizeof(struct mpc52xx_psc));
 
 	mps->irq = platform_get_irq(pdev, 0);
-	if (mps->irq < 0)
+	if ((int)mps->irq < 0)
 		return mps->irq;
 
 	ret = devm_request_irq(dev, mps->irq, mpc512x_psc_spi_isr, IRQF_SHARED,