Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Laxman Dewangan <> | Subject | [PATCH V2 2/5] gpio: gpiolib: Print error number if gpio hog failed | Date | Fri, 11 Mar 2016 19:13:21 +0530 |
| |
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 <ldewangan@nvidia.com>
--- Changes from V1: - Keep originality of error message, just add the error number. - It makes line to be >80 for string and understood that it is fine for string on some cases. --- drivers/gpio/gpiolib.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 1741ef4..b682d73 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2680,15 +2680,16 @@ 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; } -- 2.1.4
| ![\](/images/icornerr.gif) |