diff options
| -rw-r--r-- | drivers/platform/x86/wmi.c | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index ab24ea9ffc9a..6b3b2fe464d2 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -958,21 +958,13 @@ static int wmi_dev_match(struct device *dev, struct device_driver *driver) } static int wmi_char_open(struct inode *inode, struct file *filp) { - const char *driver_name = filp->f_path.dentry->d_iname; - struct wmi_block *wblock; - struct wmi_block *next; - - list_for_each_entry_safe(wblock, next, &wmi_block_list, list) { - if (!wblock->dev.dev.driver) - continue; - if (strcmp(driver_name, wblock->dev.dev.driver->name) == 0) { - filp->private_data = wblock; - break; - } - } + /* + * The miscdevice already stores a pointer to itself + * inside filp->private_data + */ + struct wmi_block *wblock = container_of(filp->private_data, struct wmi_block, char_dev); - if (!filp->private_data) - return -ENODEV; + filp->private_data = wblock; return nonseekable_open(inode, filp); } |