Krzysztof Kozlowski 06f464df98 gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB ...

[ Upstream commit c5510b8dafce5f3f5a039c9b262ebcae0092c462 ]

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>

2019-12-05 09:20:15 +01:00

..

aspeed.h

gpio: aspeed: Add interfaces for co-processor to grab GPIOs

2018-07-02 16:10:15 +02:00

consumer.h

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

2019-12-05 09:20:15 +01:00

driver.h

gpio: Assign gpio_irq_chip::parents to non-stack pointer

2018-10-10 14:03:27 +02:00

gpio-reg.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

machine.h

gpiolib: add hogs support for machine code

2018-05-16 14:35:24 +02:00