Print the error number of GPIO hog failed during its configurations. This helps in identifying the failure without instrumenting the code.
Signed-off-by: Laxman Dewangan <[email protected]> --- drivers/gpio/gpiolib.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index bc788b9..7575ebb 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2621,15 +2621,16 @@ 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); + status = PTR_ERR(local_desc); + pr_err("requesting hog GPIO %s, chip %s, offset %d failed %d\n", + name, chip->label, hwnum, status); return PTR_ERR(local_desc); } 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; } -- 2.1.4
