1 files changed, 3 insertions, 2 deletions
diff --git a/qgroup.c b/qgroup.c
index 2cfd6dbd..a035579e 100644
--- a/qgroup.c
+++ b/qgroup.c
@@ -610,8 +610,9 @@ static struct btrfs_qgroup *get_or_add_qgroup(
 
 	ret = qgroup_tree_insert(qgroup_lookup, bq);
 	if (ret) {
-		error("failed to insert %llu into tree: %s",
-		       (unsigned long long)bq->qgroupid, strerror(-ret));
+		errno = -ret;
+		error("failed to insert %llu into tree: %m",
+		       (unsigned long long)bq->qgroupid);
 		free(bq);
 		return ERR_PTR(ret);
 	}