// Don't call it a second time here.
				if !cc.getConnCalled {
					http2traceGetConn(req, addr)
				}
				cc.getConnCalled = false
				p.mu.Unlock()
				return cc, nil
			}
		}
		if !dialOnMiss {
			p.mu.Unlock()
			return nil, http2ErrNoCachedConn
		}
		http2traceGetConn(req, addr)
		call := p.getStartDialLocked(req.Context(), addr)
		p.mu.Unlock()
		<-call.done