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gpio: davinci: 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. Cc: Sekhar Nori <nsekhar@ti.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -125,7 +125,7 @@ static int davinci_gpio_get(struct gpio_chip *chip, unsigned offset)
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struct davinci_gpio_controller *d = chip2controller(chip);
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struct davinci_gpio_controller *d = chip2controller(chip);
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struct davinci_gpio_regs __iomem *g = d->regs;
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struct davinci_gpio_regs __iomem *g = d->regs;
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return (1 << offset) & readl_relaxed(&g->in_data);
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return !!((1 << offset) & readl_relaxed(&g->in_data));
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}
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}
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/*
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/*
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