diff mbox series

[v2,15/23] gpio: cdev: don't access gdev->chip if it's not needed

Message ID 20240205093418.39755-16-brgl@bgdev.pl
State New
Headers show
Series gpio: rework locking and object life-time control | expand

Commit Message

Bartosz Golaszewski Feb. 5, 2024, 9:34 a.m. UTC 
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

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>
---
 drivers/gpio/gpiolib-cdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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;