m68k: coldfire/gpio: Be sure to clamp return value
authorLinus Walleij <linus.walleij@linaro.org>
Tue, 22 Dec 2015 14:39:05 +0000 (15:39 +0100)
committerGreg Ungerer <gerg@uclinux.org>
Mon, 4 Jan 2016 03:25:12 +0000 (13:25 +1000)
commit4693c2493a9b2d0c5d407496ea107676a690f1c0
tree642bf9ac60b509b343b21565e313a00a314abe50
parent168309855a7d1e16db751e9c647119fe2d2dc878
m68k: coldfire/gpio: Be sure to clamp return value

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: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
arch/m68k/coldfire/gpio.c