Commit 6e551bfa authored by Srinivas Neeli's avatar Srinivas Neeli Committed by Bartosz Golaszewski
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gpio: gpio-xilinx: Add check if width exceeds 32 



Add check to see if gpio-width property does not exceed 32.
If it exceeds then return -EINVAL.

Signed-off-by: default avatarSrinivas Neeli <srinivas.neeli@xilinx.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Acked-by: default avatarWilliam Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: default avatarBartosz Golaszewski <bgolaszewski@baylibre.com>
parent 26b04774

drivers/gpio/gpio-xilinx.c

+5 −0
Original line number Diff line number Diff line
@@ -589,6 +589,9 @@ static int xgpio_probe(struct platform_device *pdev) 
	if (of_property_read_u32(np, "xlnx,gpio-width", &chip->gpio_width[0]))

		chip->gpio_width[0] = 32;



	if (chip->gpio_width[0] > 32)

		return -EINVAL;



	spin_lock_init(&chip->gpio_lock);



	if (of_property_read_u32(np, "xlnx,is-dual", &is_dual))
@@ -613,6 +616,8 @@ static int xgpio_probe(struct platform_device *pdev) 
					 &chip->gpio_width[1]))

			chip->gpio_width[1] = 32;



		if (chip->gpio_width[1] > 32)

			return -EINVAL;

	}



	chip->gc.base = -1;