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blackfin: gpio: Be sure to clamp return value
authorLinus Walleij <linus.walleij@linaro.org>
Mon, 21 Dec 2015 15:50:18 +0000 (16:50 +0100)
committerLinus Walleij <linus.walleij@linaro.org>
Mon, 25 Jan 2016 17:02:09 +0000 (18:02 +0100)
commit48295fe932b3306c25ba6157db82f8f9938f2637
treea7a24b4c9fc490e0015f45a6a5b4a3fa1fdf1d92tree | snapshot (tar.gz zip)
parent92e963f50fc74041b5e9e744c330dca48e04f08dcommit | diff
blackfin: 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: Steven Miao <realmz6@gmail.com>
Cc: adi-buildroot-devel@lists.sourceforge.net
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
arch/blackfin/kernel/bfin_gpio.c diff | blob | blame | history