From fcfd7c299915ff1bc3117f6b01d4150b430dd0e6 Mon Sep 17 00:00:00 2001
From: Miklos Marton <martonmiklosqdev@gmail.com>
Date: Wed, 15 Jan 2025 10:43:39 +0100
Subject: [PATCH] Only claim interface if the open was successful

---
 src/common/stlink_interface.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common/stlink_interface.cpp b/src/common/stlink_interface.cpp
index c7d09dc..64ea138 100644
--- a/src/common/stlink_interface.cpp
+++ b/src/common/stlink_interface.cpp
@@ -228,8 +228,8 @@ STLinkInterface::STLink_OpenDevice(TEnumStlinkInterface IfId,
     libusb_device *dev = devices[DevIdxInList];
     libusb_device_handle *handle = nullptr;
     int ret = libusb_open(dev, &handle);
-    libusb_claim_interface(handle, 4);
     if (LIBUSB_SUCCESS == ret) {
+        libusb_claim_interface(handle, 4);
         *pHandle = handle;
         return SS_OK;
     }