[PATCH] d_alloc_root() fixes: efs

 - inode leak on d_alloc_root() failure

fs/efs/super.c

@@ -210,6 +210,7 @@ int efs_fill_super(struct super_block *s, void *d, int silent)
 {
 	struct efs_sb_info *sb;
 	struct buffer_head *bh;
+	struct inode *root;
 
  	sb = kmalloc(sizeof(struct efs_sb_info), GFP_KERNEL);
 	if (!sb)
@@ -266,10 +267,12 @@ int efs_fill_super(struct super_block *s, void *d, int silent)
 		s->s_flags |= MS_RDONLY;
 	}
 	s->s_op   = &efs_superblock_operations;
-	s->s_root = d_alloc_root(iget(s, EFS_ROOTINODE));
+	root = iget(s, EFS_ROOTINODE);
+	s->s_root = d_alloc_root(root);
  
 	if (!(s->s_root)) {
 		printk(KERN_ERR "EFS: get root inode failed\n");
+		iput(root);
 		goto out_no_fs;
 	}