diff options
| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-01-24 17:21:16 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-02-12 10:51:10 +0100 |
| commit | 3c7a47f6c5f0d3e3c6149b7eb920f420a741e969 (patch) | |
| tree | f6dbfaec964b3d7b1b4e65de86f97eba4823a52a /drivers/gpio | |
| parent | gpio: cdev: replace gpiochip_get_desc() with gpio_device_get_desc() (diff) | |
| download | linux-3c7a47f6c5f0d3e3c6149b7eb920f420a741e969.tar.xz linux-3c7a47f6c5f0d3e3c6149b7eb920f420a741e969.zip | |
gpio: cdev: don't access gdev->chip if it's not needed
The variable holding the number of GPIO lines is duplicated in GPIO
device so read it instead of unnecessarily dereferencing the chip
pointer.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib-cdev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index 8e37e3befa08..e993c6a7215a 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -2701,7 +2701,7 @@ static int gpio_chrdev_open(struct inode *inode, struct file *file) if (!cdev) return -ENODEV; - cdev->watched_lines = bitmap_zalloc(gdev->chip->ngpio, GFP_KERNEL); + cdev->watched_lines = bitmap_zalloc(gdev->ngpio, GFP_KERNEL); if (!cdev->watched_lines) goto out_free_cdev; |