Fix NPE

wzshiming · Nov 2, 2021 · 0e3acf1 · 0e3acf1
1 parent de6fae5
commit 0e3acf1
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/protocols/smux/smux.go b/protocols/smux/smux.go
@@ -38,6 +38,8 @@ type sMux struct {
 }
 
 func (m *sMux) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
+	m.mux.Lock()
+	defer m.mux.Unlock()
 	if m.sess == nil || m.sess.IsClosed() {
 		if m.sess != nil {
 			m.sess.Close()