diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2016-03-11 13:43:21 (GMT) |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-04-14 12:50:49 (GMT) |
| commit | c31a571d4360a7765613615709627e83059ce946 (patch) | |
| tree | 57450e218e81f851ca0ebc818327ca6bacc29fd0 /drivers/gpio | |
| parent | d1279d94b4e47c3684f936ed6b6c89d3dd2cd5b9 (diff) | |
| download | linux-c31a571d4360a7765613615709627e83059ce946.tar.xz | |
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: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 1edc830..59a0d8e 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -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; } |