From 647f63bd363e5f4800bf3e85a613793e1eb4bf25 Mon Sep 17 00:00:00 2001 From: Filipe David Borba Manana Date: Sat, 13 Jul 2013 12:25:15 +0100 Subject: [PATCH] Btrfs: add missing error checks to add_data_references The function relocation.c:add_data_references() was not checking if all calls to __add_tree_block() and find_data_references() were succeeding or not. Signed-off-by: Filipe David Borba Manana Reviewed-by: David Sterba Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/relocation.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index 12096496cc99..295a6115c326 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -3628,7 +3628,7 @@ int add_data_references(struct reloc_control *rc, unsigned long ptr; unsigned long end; u32 blocksize = btrfs_level_size(rc->extent_root, 0); - int ret; + int ret = 0; int err = 0; eb = path->nodes[0]; @@ -3655,6 +3655,10 @@ int add_data_references(struct reloc_control *rc, } else { BUG(); } + if (ret) { + err = ret; + goto out; + } ptr += btrfs_extent_inline_ref_size(key.type); } WARN_ON(ptr > end); @@ -3700,6 +3704,7 @@ int add_data_references(struct reloc_control *rc, } path->slots[0]++; } +out: btrfs_release_path(path); if (err) free_block_list(blocks); -- GitLab