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btrfs: handle errors from btrfs_dec_ref() properly

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commit 5eb178f373 upstream.

In walk_up_proc() we BUG_ON(ret) from btrfs_dec_ref().  This is
incorrect, we have proper error handling here, return the error.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Jianqi Ren <jianqi.ren.cn@windriver.com>
Signed-off-by: He Zhe <zhe.he@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Josef Bacik
2024-05-07 14:12:15 -04:00
committed by Greg Kroah-Hartman
parent 99ddb9c585
commit 67e4ca7ddc
1 changed files with 4 additions and 1 deletions
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fs/btrfs/extent-tree.c
+4 -1
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@@ -5540,7 +5540,10 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans,
ret = btrfs_dec_ref(trans, root, eb, 1);
else
ret = btrfs_dec_ref(trans, root, eb, 0);
BUG_ON(ret); /* -ENOMEM */
if (ret) {
btrfs_abort_transaction(trans, ret);
return ret;
}
if (is_fstree(root->root_key.objectid)) {
ret = btrfs_qgroup_trace_leaf_items(trans, eb);
if (ret) {