From 268fa5dc8b97271b3aacde42a156273f828ca5da Mon Sep 17 00:00:00 2001
From: "chunmao.guo" <chunmao.guo@bambulab.com>
Date: Thu, 9 Nov 2023 08:53:05 +0800
Subject: [PATCH] FIX: missing unlock cause device or resource busy

Change-Id: I87563312ea9c6ce4e4e471da7ce7a02b53b64762
---
 src/libslic3r/Preset.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libslic3r/Preset.cpp b/src/libslic3r/Preset.cpp
index 3ded8f16c..4584e5694 100644
--- a/src/libslic3r/Preset.cpp
+++ b/src/libslic3r/Preset.cpp
@@ -1645,6 +1645,7 @@ bool PresetCollection::load_user_preset(std::string name, std::map<std::string,
     // base_id
     if (preset_values.find(BBL_JSON_KEY_BASE_ID) == preset_values.end()) {
         BOOST_LOG_TRIVIAL(warning) << __FUNCTION__ << boost::format("can not find base_id, not loading for user preset %1%") % name;
+        unlock();
         return false;
     }
     std::string cloud_base_id = preset_values[BBL_JSON_KEY_BASE_ID];