Windows: Mark interfaces as unused when releasing

Without this important cleanup, the autoclaim code could attempt to
reuse an unclaimed interface as if it were already claimed.

diff --git a/libusb/os/windows_usb.c b/libusb/os/windows_usb.c
index 03a70fc..14c2d7b 100644 (file)
--- a/libusb/os/windows_usb.c
+++ b/libusb/os/windows_usb.c
@@ -2583,6 +2583,7 @@ static int winusb_release_interface(struct libusb_device_handle *dev_handle, int
        }
 
        WinUsb_Free(winusb_handle);
+       handle_priv->interface_handle[iface].api_handle = INVALID_HANDLE_VALUE;
 
        return LIBUSB_SUCCESS;
 }