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authorLinus Walleij <linus.walleij@linaro.org>2015-12-22 17:47:31 +0300
committerLee Jones <lee.jones@linaro.org>2016-01-14 11:43:37 +0300
commitfe0b486729e1ae837cf0afd1005d3c10a78f9807 (patch)
tree70091379199a74ae82ef22e953e883713761c0f9 /drivers
parentf7d623669648d2a8d7e81671294c26e480ddcc79 (diff)
downloadlinux-fe0b486729e1ae837cf0afd1005d3c10a78f9807.tar.xz
mfd: dm355evm_mps: 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: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mfd/dm355evm_msp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index 4c826f78acd0..bf3e0b21b247 100644
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -147,7 +147,7 @@ static int msp_gpio_get(struct gpio_chip *chip, unsigned offset)
return status;
if (reg == DM355EVM_MSP_LED)
msp_led_cache = status;
- return status & MSP_GPIO_MASK(offset);
+ return !!(status & MSP_GPIO_MASK(offset));
}
static int msp_gpio_out(struct gpio_chip *chip, unsigned offset, int value)