Krzysztof Kozlowski 6d5c0c6734 gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB ...

[ Upstream commit c5510b8daf ]

If CONFIG_GPOILIB is not set, the stub of gpio_to_desc() should return
the same type of error as regular version: NULL.  All the callers
compare the return value of gpio_to_desc() against NULL, so returned
ERR_PTR would be treated as non-error case leading to dereferencing of
error value.

Fixes: 79a9becda8 ("gpiolib: export descriptor-based GPIO interface")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-05-15 16:06:31 +09:00

..

consumer.h

gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB

2023-05-15 16:06:31 +09:00

driver.h

pinctrl&gpio: add new interface to set pull-down/up

2017-06-09 20:16:29 -07:00

machine.h

gpiolib: Add support for removing registered consumer lookup table

2015-07-21 09:21:40 +02:00