Fix memory leak

src/core/surface/call.c

@@ -270,7 +270,7 @@ grpc_call *grpc_call_create(grpc_channel *channel, grpc_completion_queue *cq,
   call->channel = channel;
   call->cq = cq;
   if (cq) {
-    grpc_cq_internal_ref(cq);
+    GRPC_CQ_INTERNAL_REF(cq, "bind");
   }
   call->is_client = server_transport_data == NULL;
   for (i = 0; i < GRPC_IOREQ_OP_COUNT; i++) {
@@ -321,7 +321,7 @@ void grpc_call_set_completion_queue(grpc_call *call,
   lock(call);
   call->cq = cq;
   if (cq) {
-    grpc_cq_internal_ref(cq);
+    GRPC_CQ_INTERNAL_REF(cq, "bind");
   }
   unlock(call);
 }
@@ -371,7 +371,7 @@ static void destroy_call(void *call, int ignored_success) {
   grpc_bbq_destroy(&c->incoming_queue);
   gpr_slice_buffer_destroy(&c->incoming_message);
   if (c->cq) {
-    grpc_cq_internal_ref(c->cq);
+    GRPC_CQ_INTERNAL_UNREF(c->cq, "bind");
   }
   gpr_free(c);
 }