From 3c3e45746ae284aa0adb172fb8dfe32b762cb410 Mon Sep 17 00:00:00 2001
From: Stefan Kalkowski <stefan.kalkowski@genode-labs.com>
Date: Thu, 20 Apr 2023 16:16:42 +0200
Subject: [PATCH] usb_modem: ensure freeing packets in destructor

Ref genodelabs/genode#4795
---
 repos/dde_linux/src/drivers/usb_modem/main.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/repos/dde_linux/src/drivers/usb_modem/main.cc b/repos/dde_linux/src/drivers/usb_modem/main.cc
index 490a8c291a..9f295bb45f 100644
--- a/repos/dde_linux/src/drivers/usb_modem/main.cc
+++ b/repos/dde_linux/src/drivers/usb_modem/main.cc
@@ -199,6 +199,11 @@ Driver::Device::~Device()
 {
 	driver.devices.remove(&le);
 	if (udev) unregister_device();
+
+	while (usb.source()->ack_avail()) {
+		Usb::Packet_descriptor p = usb.source()->get_acked_packet();
+		usb.source()->release_packet(p);
+	}
 }