diff options
author | Wang Shilong <wangsl.fnst@cn.fujitsu.com> | 2014-05-28 19:20:41 +0800 |
---|---|---|
committer | David Sterba <dsterba@suse.cz> | 2014-08-22 14:39:33 +0200 |
commit | a764785990db3a68c09d1d5cfcfc49b5b6028179 (patch) | |
tree | 76de9a952328ccc927f8c101f40d2facc6b5a4ac /disk-io.c | |
parent | c63d47653fc61e59f6b7d30b55982e9fe843ceef (diff) |
Btrfs-progs: fsck: fix wrong check for btrfs_read_fs_root()
When encountering a corrupted fs root node, fsck hit following message:
Check tree block failed, want=29360128, have=0
Check tree block failed, want=29360128, have=0
Check tree block failed, want=29360128, have=0
Check tree block failed, want=29360128, have=0
Check tree block failed, want=29360128, have=0
read block failed check_tree_block
Checking filesystem on /dev/sda9
UUID: 0d295d80-bae2-45f2-a106-120dbfd0e173
checking extents
Segmentation fault (core dumped)
This is because in btrfs_setup_all_roots(), we check
btrfs_read_fs_root() return value by verifing whether it is
NULL pointer, this is wrong since btrfs_read_fs_root() return
PTR_ERR(ret), fix it.
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'disk-io.c')
-rw-r--r-- | disk-io.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -939,7 +939,7 @@ int btrfs_setup_all_roots(struct btrfs_fs_info *fs_info, u64 root_tree_bytenr, key.offset = (u64)-1; fs_info->fs_root = btrfs_read_fs_root(fs_info, &key); - if (!fs_info->fs_root) + if (IS_ERR(fs_info->fs_root)) return -EIO; return 0; } |