It doesn't make much sense to make some (possible expensive) calls to gpio_is_valid() first, and to ignore the result if the base number is negative. Check for a positive base number first.
Signed-off-by: Geert Uytterhoeven <[email protected]> --- 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 2e3d66adc6880950..bdf2020e103c7bc0 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -227,8 +227,8 @@ int gpiochip_add(struct gpio_chip *chip) unsigned id; int base = chip->base; - if ((!gpio_is_valid(base) || !gpio_is_valid(base + chip->ngpio - 1)) - && base >= 0) { + if (base >= 0 && + (!gpio_is_valid(base) || !gpio_is_valid(base + chip->ngpio - 1))) { status = -EINVAL; goto fail; } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
