From 4ed55016d763325887461d43d0aec4010adcab65 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 20 Feb 2017 18:15:46 +0200 Subject: [PATCH] gpio: acpi: Don't return 0 on acpi_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 Acked-by: Mika Westerberg Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib-acpi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 108331de440b..a5b84d40e60c 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -1098,7 +1098,7 @@ int acpi_gpio_count(struct device *dev, const char *con_id) break; } } - if (count >= 0) + if (count > 0) break; } @@ -1114,7 +1114,7 @@ int acpi_gpio_count(struct device *dev, const char *con_id) if (crs_count > 0) count = crs_count; } - return count; + return count ? count : -ENOENT; } struct acpi_crs_lookup { -- 2.39.5