mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-23 09:19:51 +00:00
Code Issues Releases Wiki Activity

gpio: generic: clamp retured value to [0,1]

Browse source 
The generic GPIO would return 0 for low generic GPIO, and
something != 0 for high GPIO. Let's make this sane by clamping
the returned value to [0,1].

Reported-by: Evgeny Boger <boger@contactless.ru>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2014-02-05 14:08:02 +01:00
parent f86b7c70bc
commit 25b35da7f4
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/gpio/gpio-generic.c
View file

@ -139,7 +139,7 @@ static int bgpio_get(struct gpio_chip *gc, unsigned int gpio)
{
struct bgpio_chip *bgc = to_bgpio_chip(gc);
return bgc->read_reg(bgc->reg_dat) & bgc->pin2mask(bgc, gpio);
return !!(bgc->read_reg(bgc->reg_dat) & bgc->pin2mask(bgc, gpio));
}
static void bgpio_set(struct gpio_chip *gc, unsigned int gpio, int val)