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unicore: gpio: Be sure to clamp return value
authorLinus Walleij <linus.walleij@linaro.org>
Mon, 21 Dec 2015 21:45:55 +0000 (22:45 +0100)
committerLinus Walleij <linus.walleij@linaro.org>
Mon, 25 Jan 2016 17:02:26 +0000 (18:02 +0100)
commita80bb4c9ec200ab4fc3ad502bf80e00ca5db12a7
tree3828d08fab52b54a922fa00901ac7076a98b0e40tree | snapshot
parenta4ce4b8dae68e7233ba699f10e9c120df31f5824commit | diff
unicore: 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: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
arch/unicore32/kernel/gpio.c diff | blob | history
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