gpiolib: remove the GPIO device from the list when it's unregistered

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If we wait until the GPIO device's .release() callback gets invoked
before we remove it from the global device list, then we risk that
someone will look it up using gpio_device_find() between where we
dropped the last reference and before .release() is done taking a
reference again to an object that's being released.

The device must be removed when it's being unregistered - just like how
we remove it from the GPIO bus.

Fixes: ff2b135922 ("gpio: make the gpiochip a real device")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

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Bartosz Golaszewski 2024-01-02 16:59:47 +01:00

parent c4f8457d17

commit 48e1b4d369

1 changed files with 3 additions and 3 deletions

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drivers/gpio/gpiolib.c

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