gpio: Remove impossible checks on container_of() result
container_of() does pointer math on the pointer that's passed in.
If it were to return a NULL pointer the value passed in would
need to be perfectly offset from 0 to make that so. Remove these
checks because they don't make sense.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 7f51c9b..c76fa4f 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -983,7 +983,7 @@
struct gpio_device, chrdev);
/* Fail on open if the backing gpiochip is gone */
- if (!gdev || !gdev->chip)
+ if (!gdev->chip)
return -ENODEV;
get_device(&gdev->dev);
filp->private_data = gdev;
@@ -1002,8 +1002,6 @@
struct gpio_device *gdev = container_of(inode->i_cdev,
struct gpio_device, chrdev);
- if (!gdev)
- return -ENODEV;
put_device(&gdev->dev);
return 0;
}