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Commit 65493e3a authored by Alexandre Courbot's avatar Alexandre Courbot Committed by Grant Likely
Browse files

gpiolib: use gpio_chips list in gpiolib_sysfs_init



Use the small list of GPIO chips instead of parsing the whole GPIO
number space.

Signed-off-by: default avatarAlexandre Courbot <acourbot@nvidia.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
parent 1a989d0f
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+2 −5
Original line number Diff line number Diff line
@@ -974,7 +974,7 @@ static int __init gpiolib_sysfs_init(void)
{
	int		status;
	unsigned long	flags;
	unsigned	gpio;
	struct gpio_chip *chip;

	status = class_register(&gpio_class);
	if (status < 0)
@@ -987,10 +987,7 @@ static int __init gpiolib_sysfs_init(void)
	 * registered, and so arch_initcall() can always gpio_export().
	 */
	spin_lock_irqsave(&gpio_lock, flags);
	for (gpio = 0; gpio < ARCH_NR_GPIOS; gpio++) {
		struct gpio_chip	*chip;

		chip = gpio_desc[gpio].chip;
	list_for_each_entry(chip, &gpio_chips, list) {
		if (!chip || chip->exported)
			continue;