A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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mfd: dm355evm_mps: Be sure to clamp return value

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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 <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
This commit is contained in:
Linus Walleij 2015-12-22 15:47:31 +01:00 • committed by Lee Jones
commit fe0b486729
1 changed files with 1 additions and 1 deletions
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drivers/mfd/dm355evm_msp.c
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@ -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)