From 077f335dbd2aeddea1658d938972d3cee7e039d1 Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Date: Wed, 19 Oct 2022 07:40:31 +0200
Subject: [PATCH] src/libusb_ll: adding a libusb_open() return code check: when
 fails skip rest of the loop

---
 src/libusb_ll.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/libusb_ll.cpp b/src/libusb_ll.cpp
index 3db08cc..85951df 100644
--- a/src/libusb_ll.cpp
+++ b/src/libusb_ll.cpp
@@ -92,6 +92,15 @@ bool libusb_ll::scan()
 			continue;
 
 		int ret = libusb_open(usb_dev, &handle);
+		if (ret != 0) {
+			snprintf(mess, 1024,
+				"Error: can't open device with vid:vid = 0x%04x:0x%04x. "
+				"Error code %d %s",
+				desc.idVendor, desc.idProduct,
+				ret, libusb_strerror(static_cast<libusb_error>(ret)));
+			printError(mess);
+			continue;
+		}
 
 		uint8_t iproduct[200];
 		uint8_t iserial[200];