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Message-Id: <200608221101.k7MB1jm20630@apps.cwi.nl> Date: Tue, 22 Aug 2006 13:01:45 +0200 (MEST) From: <Andries.Brouwer@....nl> To: akpm@...l.org, torvalds@...l.org Cc: linux-kernel@...r.kernel.org Subject: ext2 fix 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@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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