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gpio: of: add missing of_node_put() in of_gpiochip_scan_gpios()

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When terminating for_each_available_child_of_node() iteration
with break or return, of_node_put() should be used to prevent
stale device node references from being left behind.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Wei Yongjun 2016-10-29 16:13:52 +00:00 committed by Linus Walleij
parent 550a9532b8
commit 09e258af4e
1 changed files with 3 additions and 1 deletions
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4
drivers/gpio/gpiolib-of.c
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@ -247,8 +247,10 @@ static int of_gpiochip_scan_gpios(struct gpio_chip *chip)
continue;
ret = gpiod_hog(desc, name, lflags, dflags);
if (ret < 0)
if (ret < 0) {
of_node_put(np);
return ret;
}
}
return 0;