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Revert "gpio: revert get() to non-errorprogating behaviour" 

This reverts commit 45ad7db90b.

We have fixed all the drivers that were returning ambious values
not clamped to [0,1] or an error code, so return the error
propagating behaviour of the API.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-21 23:10:12 +01:00
parent 39e24ac3c3
commit 723a63034e
1 changed files with 1 additions and 7 deletions
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8
drivers/gpio/gpiolib.c
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@ -1303,13 +1303,7 @@ static int _gpiod_get_raw_value(const struct gpio_desc *desc)
chip = desc->chip;
offset = gpio_chip_hwgpio(desc);
value = chip->get ? chip->get(chip, offset) : -EIO;
/*
* FIXME: fix all drivers to clamp to [0,1] or return negative,
* then change this to:
* value = value < 0 ? value : !!value;
* so we can properly propagate error codes.
*/
value = !!value;
value = value < 0 ? value : !!value;
trace_gpio_value(desc_to_gpio(desc), 1, value);
return value;
}