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| author | Linus Walleij <linus.walleij@linaro.org> | 2015-12-22 15:47:31 +0100 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2016-01-14 08:43:37 +0000 |
| commit | fe0b486729e1ae837cf0afd1005d3c10a78f9807 (patch) | |
| tree | 70091379199a74ae82ef22e953e883713761c0f9 | |
| parent | f7d623669648d2a8d7e81671294c26e480ddcc79 (diff) | |
| download | linux-fe0b486729e1ae837cf0afd1005d3c10a78f9807.tar.bz2 | |
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>
| -rw-r--r-- | drivers/mfd/dm355evm_msp.c | 2 |
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) |