diff options
| author | Stephen Boyd <sboyd@codeaurora.org> | 2017-01-09 11:47:44 -0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-01-11 16:01:27 +0100 |
| commit | fb505747c06b8894bccb18457fd11bad047384f4 (patch) | |
| tree | 1e97ee70cc956b527c97341dccdccb3a8db18eea /drivers/gpio | |
| parent | e567c35f4909b6e752f63412ed6038c4d9aa9ede (diff) | |
| download | linux-stable-fb505747c06b8894bccb18457fd11bad047384f4.tar.gz linux-stable-fb505747c06b8894bccb18457fd11bad047384f4.tar.bz2 linux-stable-fb505747c06b8894bccb18457fd11bad047384f4.zip | |
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>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 7f51c9bf5533..c76fa4ffb59c 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -983,7 +983,7 @@ static int gpio_chrdev_open(struct inode *inode, struct file *filp) 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 @@ static int gpio_chrdev_release(struct inode *inode, struct file *filp) struct gpio_device *gdev = container_of(inode->i_cdev, struct gpio_device, chrdev); - if (!gdev) - return -ENODEV; put_device(&gdev->dev); return 0; } |