fs/hugetlbfs/inode.c: remove null test before kfree

Fix checkpatch warning:
WARNING: kfree(NULL) is safe this check is probably not required
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/hugetlbfs/inode.c

@@ -901,8 +901,7 @@ hugetlbfs_fill_super(struct super_block *sb, void *data, int silent)
 		goto out_free;
 	return 0;
 out_free:
-	if (sbinfo->spool)
-		kfree(sbinfo->spool);
+	kfree(sbinfo->spool);
 	kfree(sbinfo);
 	return -ENOMEM;
 }