__inode_security_revalidate() never gets NULL opt_dentry

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

security/selinux/hooks.c

@@ -274,11 +274,10 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
  * Try reloading inode security labels that have been marked as invalid.  The
  * @may_sleep parameter indicates when sleeping and thus reloading labels is
  * allowed; when set to false, returns -ECHILD when the label is
- * invalid.  The @opt_dentry parameter should be set to a dentry of the inode;
- * when no dentry is available, set it to NULL instead.
+ * invalid.  The @dentry parameter should be set to a dentry of the inode.
  */
 static int __inode_security_revalidate(struct inode *inode,
-				       struct dentry *opt_dentry,
+				       struct dentry *dentry,
 				       bool may_sleep)
 {
 	struct inode_security_struct *isec = inode->i_security;
@@ -295,7 +294,7 @@ static int __inode_security_revalidate(struct inode *inode,
 		 * @opt_dentry is NULL and no dentry for this inode can be
 		 * found; in that case, continue using the old label.
 		 */
-		inode_doinit_with_dentry(inode, opt_dentry);
+		inode_doinit_with_dentry(inode, dentry);
 	}
 	return 0;
 }