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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 <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2017-02-20 18:15:46 +02:00 committed by Linus Walleij
parent 529f75d8ca
commit 4ed55016d7
1 changed files with 2 additions and 2 deletions
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4
drivers/gpio/gpiolib-acpi.c
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@ -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 {