X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=fs%2Ftracefs%2Finode.c;h=0292c6a2bed9f2b2c237ac8f3d1e89c3fb9dc271;hb=6abb8c223ce12078a0f2c129656a13338dfe960b;hp=891653ba9cf35863f5cc83638b2a2a9a88a03444;hpb=2dc4e0f45593abc53d58d0073b3b314f864c522b;p=platform%2Fkernel%2Flinux-starfive.git

diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 891653b..0292c6a 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -509,20 +509,15 @@ struct dentry *eventfs_start_creating(const char *name, struct dentry *parent)
 	struct dentry *dentry;
 	int error;
 
+	/* Must always have a parent. */
+	if (WARN_ON_ONCE(!parent))
+		return ERR_PTR(-EINVAL);
+
 	error = simple_pin_fs(&trace_fs_type, &tracefs_mount,
 			      &tracefs_mount_count);
 	if (error)
 		return ERR_PTR(error);
 
-	/*
-	 * If the parent is not specified, we create it in the root.
-	 * We need the root dentry to do this, which is in the super
-	 * block. A pointer to that is in the struct vfsmount that we
-	 * have around.
-	 */
-	if (!parent)
-		parent = tracefs_mount->mnt_root;
-
 	if (unlikely(IS_DEADDIR(parent->d_inode)))
 		dentry = ERR_PTR(-ENOENT);
 	else