Commit b7d0a28a authored Dec 03, 2013 by Alexandre Courbot Committed by Linus Walleij Dec 04, 2013

gpio: rewrite gpiochip_offset_to_desc()

gpiochip_offset_to_desc() was using gpio_to_desc(), which directly
addresses the global GPIO array we are hoping to get rid of someday.
Reimplement it using the descriptor array of the chip itself, after
checking the requested offset is within the valid bounds of the chip.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

parent a87854da

drivers/gpio/gpiolib.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -150,9 +150,10 @@ EXPORT_SYMBOL_GPL(gpio_to_desc);
		static struct gpio_desc gpiochip_offset_to_desc(struct gpio_chip chip,
		unsigned int offset)
		{
		unsigned int gpio = chip->base + offset;
		if (offset >= chip->ngpio)
		return ERR_PTR(-EINVAL);

		return gpio_to_desc(gpio);
		return &chip->desc[offset];
		}

		/**

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