diff --git a/src/components/tl/mlx5/mcast/tl_mlx5_mcast_allgather.c b/src/components/tl/mlx5/mcast/tl_mlx5_mcast_allgather.c
index edc0522402..92f75a9bcd 100644
--- a/src/components/tl/mlx5/mcast/tl_mlx5_mcast_allgather.c
+++ b/src/components/tl/mlx5/mcast/tl_mlx5_mcast_allgather.c
@@ -339,7 +339,6 @@ ucc_status_t ucc_tl_mlx5_mcast_allgather_start(ucc_coll_task_t *coll_task)
         /* register the send buffer */
        status = ucc_tl_mlx5_mcast_mem_register(comm->ctx, req->ptr, req->length, &reg);
        if (UCC_OK != status) {
-           ucc_free(req);
            goto failed;
        }
        req->rreg = reg;
@@ -366,6 +365,9 @@ ucc_status_t ucc_tl_mlx5_mcast_allgather_start(ucc_coll_task_t *coll_task)
 
 failed:
     tl_warn(UCC_TASK_LIB(task), "mcast start allgather failed:%d", status);
+    if (req) {
+        ucc_free(req);
+    }
     coll_task->status = status;
     return ucc_task_complete(coll_task);
 }
@@ -410,8 +412,6 @@ void ucc_tl_mlx5_mcast_allgather_progress(ucc_coll_task_t *coll_task)
         coll_task->status = UCC_ERR_NO_RESOURCE;
         ucc_task_complete(coll_task);
     }
-
-    return;
 }
 
 ucc_status_t ucc_tl_mlx5_mcast_allgather_init(ucc_tl_mlx5_task_t *task)
diff --git a/src/components/tl/mlx5/tl_mlx5_coll.c b/src/components/tl/mlx5/tl_mlx5_coll.c
index d0dcc59433..0762d29419 100644
--- a/src/components/tl/mlx5/tl_mlx5_coll.c
+++ b/src/components/tl/mlx5/tl_mlx5_coll.c
@@ -44,6 +44,8 @@ ucc_status_t ucc_tl_mlx5_coll_mcast_init(ucc_base_coll_args_t *coll_args,
         break;
     default:
         status = UCC_ERR_NOT_SUPPORTED;
+        tl_trace(team->context->lib, "mcast not supported for this collective type");
+        goto free_task;
     }
 
     *task_h = &(task->super);