diff mbox series

[v2] gpio: ftgpio010: Fix platform_get_irq's error checking

Message ID 5abcacf8ee7ecb1e084f93c82cae1768e99fd4e6.1512233762.git.arvind.yadav.cs@gmail.com
State New
Headers show
Series [v2] gpio: ftgpio010: Fix platform_get_irq's error checking | expand

Commit Message

Arvind Yadav Dec. 2, 2017, 5:01 p.m. UTC
The platform_get_irq() function returns negative if an error occurs.
zero or positive number on success. platform_get_irq() error checking
for zero is not correct.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
changes in v2:
             It's should be 'irq <= 0' instead of 'irq < 0'.

 drivers/gpio/gpio-ftgpio010.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Linus Walleij Dec. 2, 2017, 8:25 p.m. UTC | #1
On Sat, Dec 2, 2017 at 6:01 PM, Arvind Yadav <arvind.yadav.cs@gmail.com> wrote:

> The platform_get_irq() function returns negative if an error occurs.
> zero or positive number on success. platform_get_irq() error checking
> for zero is not correct.
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
> ---
> changes in v2:
>              It's should be 'irq <= 0' instead of 'irq < 0'.

Yep that's the right patch! Patch applied.

Yours,
Linus Walleij
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diff mbox series

Patch

diff --git a/drivers/gpio/gpio-ftgpio010.c b/drivers/gpio/gpio-ftgpio010.c
index 139f73d..fbb12f6 100644
--- a/drivers/gpio/gpio-ftgpio010.c
+++ b/drivers/gpio/gpio-ftgpio010.c
@@ -176,8 +176,8 @@  static int ftgpio_gpio_probe(struct platform_device *pdev)
 		return PTR_ERR(g->base);
 
 	irq = platform_get_irq(pdev, 0);
-	if (!irq)
-		return -EINVAL;
+	if (irq <= 0)
+		return irq ? irq : -EINVAL;
 
 	ret = bgpio_init(&g->gc, dev, 4,
 			 g->base + GPIO_DATA_IN,