UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ASoC: wm8903: 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.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Linus Walleij 2015-12-22 15:50:49 +01:00 committed by Mark Brown
parent 8005c49d9a
commit b70381c35f
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
sound/soc/codecs/wm8903.c
View File

@ -1804,7 +1804,7 @@ static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, &reg);
return (reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT;
return !!((reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT);
}
static int wm8903_gpio_direction_out(struct gpio_chip *chip,