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Commit c31a571d authored by Laxman Dewangan's avatar Laxman Dewangan Committed by Linus Walleij
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gpio: gpiolib: Print error number if gpio hog failed 



Print the error number of GPIO hog failed during its configurations.
This helps in identifying the failure without instrumenting the code.

Signed-off-by: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent d1279d94

drivers/gpio/gpiolib.c

+6 −5
Original line number Diff line number Diff line
@@ -2702,15 +2702,16 @@ int gpiod_hog(struct gpio_desc *desc, const char *name, 


	local_desc = gpiochip_request_own_desc(chip, hwnum, name);

	if (IS_ERR(local_desc)) {

		pr_err("requesting hog GPIO %s (chip %s, offset %d) failed\n",

		       name, chip->label, hwnum);

		return PTR_ERR(local_desc);

		status = PTR_ERR(local_desc);

		pr_err("requesting hog GPIO %s (chip %s, offset %d) failed, %d\n",

		       name, chip->label, hwnum, status);

		return status;

	}



	status = gpiod_configure_flags(desc, name, dflags);

	if (status < 0) {

		pr_err("setup of hog GPIO %s (chip %s, offset %d) failed\n",

		       name, chip->label, hwnum);

		pr_err("setup of hog GPIO %s (chip %s, offset %d) failed, %d\n",

		       name, chip->label, hwnum, status);

		gpiochip_free_own_desc(desc);

		return status;

	}