From 09e258af4edaa10ee9aa3164923ee07d5863d637 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Sat, 29 Oct 2016 16:13:52 +0000 Subject: [PATCH] gpio: of: add missing of_node_put() in of_gpiochip_scan_gpios() 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 Reviewed-by: Vladimir Zapolskiy Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib-of.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 3fa4e84b4327..5236966b1bdf 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -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; -- 2.20.1