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Commit a713890d authored by Linus Walleij's avatar Linus Walleij
Browse files

gpio: improve error reporting on own descriptors 



When requesting own descriptors through hogs, it is useful to
get some details about what's going on if we encounter problems.

Acked-by: default avatarAlexandre Courbot <acourbot@nvidia.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 8405f208

drivers/gpio/gpiolib.c

+4 −2
Original line number Diff line number Diff line
@@ -2131,13 +2131,15 @@ 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 own GPIO %s failed\n", name);

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

		       name, chip->label, hwnum);

		return PTR_ERR(local_desc);

	}



	status = gpiod_configure_flags(desc, name, lflags, dflags);

	if (status < 0) {

		pr_err("setup of GPIO %s failed\n", name);

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

		       name, chip->label, hwnum);

		gpiochip_free_own_desc(desc);

		return status;

	}