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| author | David Sterba <dsterba@suse.cz> | 2015-01-19 16:21:02 +0300 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2015-01-20 00:05:44 +0300 |
| commit | 98bd5c547ef2300f915fc1adce5b6f25c195d4d4 (patch) | |
| tree | 1c84d927fcfce33ff2688ba3a70c332dbbb2a68b /fs/btrfs/super.c | |
| parent | 6f8960541b1eb6054a642da48daae2320fddba93 (diff) | |
| download | linux-98bd5c547ef2300f915fc1adce5b6f25c195d4d4.tar.xz | |
btrfs: sync ioctl, handle errors after transaction start
The version merged to 3.19 did not handle errors from start_trancaction
and could pass an invalid pointer to commit_transaction.
Fixes: 6b5fe46dfa52441f ("btrfs: do commit in sync_fs if there are pending changes")
Reported-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 60f7cbe815e9..c86fb5438454 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1001,9 +1001,9 @@ int btrfs_sync_fs(struct super_block *sb, int wait) if (fs_info->pending_changes == 0) return 0; trans = btrfs_start_transaction(root, 0); - } else { - return PTR_ERR(trans); } + if (IS_ERR(trans)) + return PTR_ERR(trans); } return btrfs_commit_transaction(trans, root); } |