diff options
| author | Bartosz Golaszewski | 2019-12-24 13:07:01 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski | 2020-01-07 12:03:28 +0100 |
| commit | 45e2360480b939173af70a2221ab63ffdaa1d325 (patch) | |
| tree | 20481fb521def3d96855c87b135d07dd035c9f26 /drivers/gpio | |
| parent | 0f41dabe45df9fe68d3207c5b7af905db7c00ce4 (diff) | |
gpiolib: use gpiochip_get_desc() in lineevent_create()
Unduplicate the ngpio check by simply calling gpiochip_get_desc() and
checking its return value.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 166160cc9956..a11c4ee3e47f 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1009,8 +1009,9 @@ static int lineevent_create(struct gpio_device *gdev, void __user *ip) lflags = eventreq.handleflags; eflags = eventreq.eventflags; - if (offset >= gdev->ngpio) - return -EINVAL; + desc = gpiochip_get_desc(gdev->chip, offset); + if (IS_ERR(desc)) + return PTR_ERR(desc); /* Return an error if a unknown flag is set */ if ((lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) || @@ -1048,7 +1049,6 @@ static int lineevent_create(struct gpio_device *gdev, void __user *ip) } } - desc = &gdev->descs[offset]; ret = gpiod_request(desc, le->label); if (ret) goto out_free_label; |