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gpio: rcar: Fix runtime PM imbalance on error 

[ Upstream commit 6f8cd24641 ]

pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Link: https://lore.kernel.org/r/20200522080839.32612-1-dinghao.liu@zju.edu.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Dinghao Liu 2020-05-22 16:08:38 +08:00 committed by Greg Kroah-Hartman
parent 1aa9de56d7
commit bb6e9827da
1 changed files with 3 additions and 1 deletions
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4
drivers/gpio/gpio-rcar.c
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@ -250,8 +250,10 @@ static int gpio_rcar_request(struct gpio_chip *chip, unsigned offset)
int error;
error = pm_runtime_get_sync(p->dev);
if (error < 0)
if (error < 0) {
pm_runtime_put(p->dev);
return error;
}
error = pinctrl_gpio_request(chip->base + offset);
if (error)