From: Rajeshwar R Shinde <[email protected]>
In struct mpc52xx_psc_spi, the variable 'irq' is declared as an unsigned int.
The comparison of variable 'irq' with signed int operand is incorrect. Also,
the return value from the call to platform_get_irq(pdev,0) is int and it is
assigned to an unsigned int variable 'irq', thus redeclaring the type of
variable 'irq' to signed int.
This fixes warning such as:
drivers/spi/spi-mpc52xx-psc.c:332:5-13:
WARNING: Unsigned expression compared with zero: mps -> irq < 0
---
drivers/spi/spi-mpc52xx-psc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-mpc52xx-psc.c b/drivers/spi/spi-mpc52xx-psc.c
index 9a1a080fb..795c08594 100644
--- a/drivers/spi/spi-mpc52xx-psc.c
+++ b/drivers/spi/spi-mpc52xx-psc.c
@@ -29,7 +29,7 @@ struct mpc52xx_psc_spi {
/* driver internal data */
struct mpc52xx_psc __iomem *psc;
struct mpc52xx_psc_fifo __iomem *fifo;
- unsigned int irq;
+ int irq;
u8 bits_per_word;
struct completion done;
--
2.25.1
On Sun, 06 Aug 2023 14:07:34 +0530, [email protected] wrote:
> In struct mpc52xx_psc_spi, the variable 'irq' is declared as an unsigned int.
> The comparison of variable 'irq' with signed int operand is incorrect. Also,
> the return value from the call to platform_get_irq(pdev,0) is int and it is
> assigned to an unsigned int variable 'irq', thus redeclaring the type of
> variable 'irq' to signed int.
>
> This fixes warning such as:
> drivers/spi/spi-mpc52xx-psc.c:332:5-13:
>
> [...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
Thanks!
[1/1] spi: spi-mpc52xx-psc: Fix an unsigned comparison that can never be negative
commit: 4f5177458ba97734149897c5d4d44f85b8fe0348
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.
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Thanks,
Mark