Ignores NULL returned by msg_get_error to avoid segfault crash

src/dyn_client.c

@@ -418,6 +418,12 @@ void req_forward_error(struct context *ctx, struct conn *conn, struct msg *req,
   // This response gets dropped in rsp_make_error anyways. But since this is
   // an error path its ok with the overhead.
   struct msg *rsp = msg_get_error(conn, dyn_error_code, error_code);
+  if (rsp == NULL) {
+    // TODO: It's not clear how the peer should behave if we hit this error
+    // condition. Return an appropriate error instead.
+    log_warn("Could not allocate msg for notifying an error to peer");
+    return;
+  }
   rsp->peer = req;
   // TODO: Check if this is required in response
   rsp->dmsg = dmsg_get();