From: Todd Poynor <toddpoynor@xxxxxxxxxx>
Use container_of(), drop unnecessary NULL check.
Reported-by: Dmitry Torokhov <dtor@xxxxxxxxxxxx>
Signed-off-by: Zhongze Hu <frankhu@xxxxxxxxxxxx>
Signed-off-by: Todd Poynor <toddpoynor@xxxxxxxxxx>
---
drivers/staging/gasket/gasket_core.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
index 20da6bdb7a73..4ac239c33ea3 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -1088,12 +1088,9 @@ static int gasket_open(struct inode *inode, struct file *filp)
const struct gasket_driver_desc *driver_desc;
struct gasket_ownership *ownership;
char task_name[TASK_COMM_LEN];
- struct gasket_cdev_info *dev_info = gasket_cdev_get_info(inode->i_cdev);
+ struct gasket_cdev_info *dev_info =
+ container_of(inode->i_cdev, struct gasket_cdev_info, cdev);
- if (!dev_info) {
- gasket_nodev_error("Unable to retrieve device data");
- return -EINVAL;
- }
gasket_dev = dev_info->gasket_dev_ptr;
driver_desc = gasket_dev->internal_desc->driver_desc;
ownership = &dev_info->ownership;
--
2.18.0.203.gfac676dfb9-goog
Resending, extracted from the previous stack of patches that needs
other cleanups.
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