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Commit b447a751 authored by Bartosz Golaszewski's avatar Bartosz Golaszewski Committed by Linus Walleij
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gpio: mockup: verify the number of GPIO chips requested 



The number of supported mockup chips is limited. Check this limit when
parsing the module parameters.

Also: make sure that each chip is described with a <base - ngpio> pair.

Signed-off-by: default avatarBartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 20c35ac4

drivers/gpio/gpio-mockup.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -330,7 +330,9 @@ static int __init gpio_mockup_init(void) 
{

{

	int err;

	int err;





	if (gpio_mockup_params_nr < 2 || (gpio_mockup_params_nr % 2))

	if ((gpio_mockup_params_nr < 2) ||

	    (gpio_mockup_params_nr % 2) ||

	    (gpio_mockup_params_nr > GPIO_MOCKUP_MAX_RANGES))

		return -EINVAL;

		return -EINVAL;





	gpio_mockup_dbg_dir = debugfs_create_dir("gpio-mockup-event", NULL);

	gpio_mockup_dbg_dir = debugfs_create_dir("gpio-mockup-event", NULL);