| Message ID | 1450795423-27756-1-git-send-email-linus.walleij@linaro.org |
|---|---|
| State | New |
| Headers | show |
diff --git a/arch/powerpc/sysdev/simple_gpio.c b/arch/powerpc/sysdev/simple_gpio.c index ff5e73230a36..56ce8ca3281b 100644 --- a/arch/powerpc/sysdev/simple_gpio.c +++ b/arch/powerpc/sysdev/simple_gpio.c @@ -46,7 +46,7 @@ static int u8_gpio_get(struct gpio_chip *gc, unsigned int gpio) { struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc); - return in_8(mm_gc->regs) & u8_pin2mask(gpio); + return !!(in_8(mm_gc->regs) & u8_pin2mask(gpio)); } static void u8_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
As we want gpio_chip .get() calls to be able to return negative error codes and propagate to drivers, we need to go over all drivers and make sure their return values are clamped to [0,1]. We do this by using the ret = !!(val) design pattern. Cc: Anton Vorontsov <anton@enomsg.org> Cc: Anatolij Gustschin <agust@denx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- POWERPC folks: as mentioned in 00/54: either apply this directly or ACK it and I will take it into the GPIO tree. --- arch/powerpc/sysdev/simple_gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)