From: coolrrsh@gmail.com To: broonie@kernel.org, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-kernel-mentees@lists.linuxfoundation.org, Rajeshwar R Shinde <coolrrsh@gmail.com> Subject: [PATCH v3] spi: spi-mpc512x-psc: Fix an unsigned comparison that can never be negative Date: Sun, 6 Aug 2023 14:07:33 +0530 [thread overview] Message-ID: <20230806083734.7685-1-coolrrsh@gmail.com> (raw) From: Rajeshwar R Shinde <coolrrsh@gmail.com> In struct mpc512x_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-mpc512x-psc.c:493:5-13: WARNING: Unsigned expression compared with zero: mps -> irq < 0 --- drivers/spi/spi-mpc512x-psc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index 99aeef28a..5cecca1be 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -53,7 +53,7 @@ struct mpc512x_psc_spi { int type; void __iomem *psc; struct mpc512x_psc_fifo __iomem *fifo; - unsigned int irq; + int irq; u8 bits_per_word; u32 mclk_rate; -- 2.25.1
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From: coolrrsh@gmail.com To: broonie@kernel.org, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-kernel-mentees@lists.linuxfoundation.org Subject: [PATCH v3] spi: spi-mpc512x-psc: Fix an unsigned comparison that can never be negative Date: Sun, 6 Aug 2023 14:07:33 +0530 [thread overview] Message-ID: <20230806083734.7685-1-coolrrsh@gmail.com> (raw) From: Rajeshwar R Shinde <coolrrsh@gmail.com> In struct mpc512x_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-mpc512x-psc.c:493:5-13: WARNING: Unsigned expression compared with zero: mps -> irq < 0 --- drivers/spi/spi-mpc512x-psc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index 99aeef28a..5cecca1be 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -53,7 +53,7 @@ struct mpc512x_psc_spi { int type; void __iomem *psc; struct mpc512x_psc_fifo __iomem *fifo; - unsigned int irq; + int irq; u8 bits_per_word; u32 mclk_rate; -- 2.25.1 _______________________________________________ Linux-kernel-mentees mailing list Linux-kernel-mentees@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees
next reply other threads:[~2023-08-06 8:37 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-08-06 8:37 coolrrsh [this message] 2023-08-06 8:37 ` [PATCH v3] spi: spi-mpc512x-psc: Fix an unsigned comparison that can never be negative coolrrsh 2023-08-06 8:37 ` [PATCH v3] spi: spi-mpc52xx-psc: " coolrrsh 2023-08-06 8:37 ` coolrrsh 2023-08-07 21:57 ` Mark Brown 2023-08-07 21:57 ` Mark Brown 2023-08-06 8:54 ` [PATCH v3] spi: spi-mpc512x-psc: " Greg KH 2023-08-06 8:54 ` Greg KH
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