Files
kernel_google_wahoo/include/linux
Krzysztof Kozlowski f644328e9f 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 15:26:48 +01:00
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