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Subject[PATCH] gpio: Remove impossible checks on container_of() result
Date
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>
---
drivers/gpio/gpiolib.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 86bf3b84ada5..4864408364ef 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -982,7 +982,7 @@ 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;
@@ -1001,8 +1001,6 @@ 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;
}
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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