From 188d7518d1bb256f0bf03c94035e46216ea35684 Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Date: Mon, 11 Apr 2022 06:51:34 +0200
Subject: [PATCH] jlink: check usb_claim error

---
 src/jlink.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/jlink.cpp b/src/jlink.cpp
index 4c1fbdb..29d2236 100644
--- a/src/jlink.cpp
+++ b/src/jlink.cpp
@@ -702,7 +702,11 @@ bool Jlink::jlink_scan_usb()
 	// request interface
 	jlink_interface = device_available[0].if_idx;
 	int cfg_idx = device_available[0].cfg_idx;
-	libusb_claim_interface(jlink_handle, jlink_interface);
+	ret = libusb_claim_interface(jlink_handle, jlink_interface);
+	if (ret != 0) {
+		printError("Fail to claim interface");
+		return false;
+	}
 
 	// search for IN and OUT endpoint
 	struct libusb_config_descriptor *cfg;