Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932164AbWHVLB4 (ORCPT ); Tue, 22 Aug 2006 07:01:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932166AbWHVLB4 (ORCPT ); Tue, 22 Aug 2006 07:01:56 -0400 Received: from hera.cwi.nl ([192.16.191.8]:22983 "EHLO hera.cwi.nl") by vger.kernel.org with ESMTP id S932164AbWHVLB4 (ORCPT ); Tue, 22 Aug 2006 07:01:56 -0400 Date: Tue, 22 Aug 2006 13:01:45 +0200 (MEST) From: Message-Id: <200608221101.k7MB1jm20630@apps.cwi.nl> To: akpm@osdl.org, torvalds@osdl.org Subject: ext2 fix Cc: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 944 Lines: 22 Mounting an ext2 filesystem with zero s_inodes_per_group will cause a divide error. Below a patch against 2.6.17.8. Andries diff -uprN -X /linux/dontdiff a/fs/ext2/super.c b/fs/ext2/super.c --- a/fs/ext2/super.c 2006-08-07 16:01:12.000000000 +0200 +++ b/fs/ext2/super.c 2006-08-22 12:36:45.682620352 +0200 @@ -776,7 +776,7 @@ static int ext2_fill_super(struct super_ if (EXT2_INODE_SIZE(sb) == 0) goto cantfind_ext2; sbi->s_inodes_per_block = sb->s_blocksize / EXT2_INODE_SIZE(sb); - if (sbi->s_inodes_per_block == 0) + if (sbi->s_inodes_per_block == 0 || sbi->s_inodes_per_group == 0) goto cantfind_ext2; sbi->s_itb_per_group = sbi->s_inodes_per_group / sbi->s_inodes_per_block; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/