We can check the argument value directly, no need for the temporary
variable.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
  * this_dev) which is active.
  */
 void __cold btrfs_assign_next_active_device(struct btrfs_device *device,
-                                    struct btrfs_device *this_dev)
+                                           struct btrfs_device *next_device)
 {
        struct btrfs_fs_info *fs_info = device->fs_info;
-       struct btrfs_device *next_device;
 
-       if (this_dev)
-               next_device = this_dev;
-       else
+       if (!next_device)
                next_device = btrfs_find_next_active_device(fs_info->fs_devices,
-                                                               device);
+                                                           device);
        ASSERT(next_device);
 
        if (fs_info->sb->s_bdev &&