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gpiolib: fix OOB access in quirk callbacks 

Commit a2b5e207ca ("gpiolib: rework quirk handling in of_find_gpio()")
introduced an array of quirk functions which get iterated over. But a
sentinal value is missing. Add it.

Fixes: a2b5e207ca ("gpiolib: rework quirk handling in of_find_gpio()")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
This commit is contained in:
Michael Walle 2022-09-16 13:01:18 +02:00 committed by Bartosz Golaszewski
parent d9e7f0e320
commit 8b10ca2f75
1 changed files with 1 additions and 0 deletions
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drivers/gpio/gpiolib-of.c
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@ -498,6 +498,7 @@ static const of_find_gpio_quirk of_find_gpio_quirks[] = {
of_find_regulator_gpio, of_find_regulator_gpio,
of_find_arizona_gpio, of_find_arizona_gpio,
of_find_usb_gpio, of_find_usb_gpio,
NULL
}; };
struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,