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gpio: cdev: don't access gdev->chip if it's not needed

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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>
This commit is contained in:
Bartosz Golaszewski 2024-01-24 17:21:16 +01:00
parent f4e14d45d7
commit 3c7a47f6c5
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpiolib-cdev.c
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@ -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;