winebus.sys: Unlink device before releasing it.

Otherwise the device will still be linked in the device list and any
thread iterating it to find a matching device will access stale pointer.

Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/winebus.sys/main.c

@@ -712,6 +712,7 @@ static NTSTATUS pdo_pnp_dispatch(DEVICE_OBJECT *device, IRP *irp)
 
             remove_pending_irps(device);
 
+            bus_unlink_hid_device(device);
             ext->vtbl->free_device(device);
 
             ext->cs.DebugInfo->Spare[0] = 0;