diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 67c37fdd00dcd0069064fe68b23dd9174f44b5ef..5b21a9bcfe811f8c7ec5a5ca301e011af93fbb05 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2672,7 +2672,7 @@ static long btrfs_ioctl_add_dev(struct btrfs_root *root, void __user *arg)
 	}
 
 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';
-	ret = btrfs_init_new_device(root, vol_args->name);
+	ret = btrfs_init_new_device(root->fs_info, vol_args->name);
 
 	if (!ret)
 		btrfs_info(root->fs_info, "disk added %s",vol_args->name);
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 99a81369e43ddb992322fbd7df73bc9dd3a250a0..1622dc7eab9195ef2886c1808029c6d26e56a69e 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2310,8 +2310,9 @@ static int btrfs_finish_sprout(struct btrfs_trans_handle *trans,
 	return ret;
 }
 
-int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
+int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path)
 {
+	struct btrfs_root *root = fs_info->dev_root;
 	struct request_queue *q;
 	struct btrfs_trans_handle *trans;
 	struct btrfs_device *device;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 471a619787e8a3da9b252f3ac352723f8fee4648..0c8e77bfa8f62a322aedf7bcc45bcf900cc63a5f 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -439,7 +439,7 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans,
 struct btrfs_device *btrfs_find_device(struct btrfs_fs_info *fs_info, u64 devid,
 				       u8 *uuid, u8 *fsid);
 int btrfs_shrink_device(struct btrfs_device *device, u64 new_size);
-int btrfs_init_new_device(struct btrfs_root *root, char *path);
+int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *path);
 int btrfs_init_dev_replace_tgtdev(struct btrfs_root *root, char *device_path,
 				  struct btrfs_device *srcdev,
 				  struct btrfs_device **device_out);