ext3: PTR_ERR return of wrong pointer in setup_new_group_blocks()

Return the PTR_ERR of the correct pointer.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/ext3/resize.c

@@ -266,7 +266,7 @@ static int setup_new_group_blocks(struct super_block *sb,
 			goto exit_bh;
 
 		if (IS_ERR(gdb = bclean(handle, sb, block))) {
-			err = PTR_ERR(bh);
+			err = PTR_ERR(gdb);
 			goto exit_bh;
 		}
 		ext3_journal_dirty_metadata(handle, gdb);