gpiolib: replace the GPIO device mutex with a read-write semaphore

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There are only two spots where we modify (add to or remove objects from)
the GPIO device list. Readers should be able to access it concurrently.
Replace the mutex with a read-write semaphore and adjust the locking
operations accordingly.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

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This commit is contained in:

Bartosz Golaszewski 2024-01-02 16:59:48 +01:00

parent 48e1b4d369

commit 1979a28075

3 changed files with 11 additions and 11 deletions

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2

drivers/gpio/gpiolib-sysfs.c

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18

drivers/gpio/gpiolib.c

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2

drivers/gpio/gpiolib.h

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