From 4033d4a4f5236b01200010bf38928347af75d86e Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 20 Feb 2017 18:15:47 +0200 Subject: [PATCH] gpio: of: Don't return 0 on dt_gpio_count() It's unusual to have error checking like (ret <= 0) in cases when counting GPIO resources. In case when it's mandatory we propagate the error (-ENOENT), otherwise we don't use the result. This makes consistent behaviour across all possible variants called in gpiod_count(). Signed-off-by: Andy Shevchenko Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 530b1ba984a4..c788b55dfe85 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -3122,10 +3122,10 @@ static int dt_gpio_count(struct device *dev, const char *con_id) gpio_suffixes[i]); ret = of_gpio_named_count(dev->of_node, propname); - if (ret >= 0) + if (ret > 0) break; } - return ret; + return ret ? ret : -ENOENT; } static int platform_gpio_count(struct device *dev, const char *con_id)