From 22c47cc533751f748c3179c5ce094b73255b91d5 Mon Sep 17 00:00:00 2001
From: tyeth <tyethgundry@googlemail.com>
Date: Mon, 27 Oct 2025 15:43:11 +0000
Subject: [PATCH] fix(usb): disconnect handler can fail in various places

---
 js/workflows/usb.js | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/js/workflows/usb.js b/js/workflows/usb.js
index 7b4ca9f..d441fed 100644
--- a/js/workflows/usb.js
+++ b/js/workflows/usb.js
@@ -53,16 +53,28 @@ class USBWorkflow extends Workflow {
 
     async onDisconnected(e, reconnect = true) {
         if (this.reader) {
-            await this.reader.cancel();
+            try {
+                await this.reader.cancel();
+            } catch (error) {
+                console.warn("Error calling reader.cancel:", error);
+            }
             this.reader = null;
         }
         if (this.writer) {
-            await this.writer.releaseLock();
+            try {
+                await this.writer.releaseLock();
+            } catch (error) {
+                console.warn("Error calling writer.releaseLock:", error);
+            }
             this.writer = null;
         }
 
         if (this._serialDevice) {
-            await this._serialDevice.close();
+            try {
+                await this._serialDevice.close();
+            } catch (error) {
+                console.warn("Error calling _serialDevice.close:", error);
+            }
             this._serialDevice = null;
         }
 
@@ -273,7 +285,11 @@ class USBWorkflow extends Workflow {
         device.addEventListener("message", this._messageCallback);
 
         let onDisconnect = async (e) => {
-            await this.onDisconnected(e, false);
+            try {
+                await this.onDisconnected(e, false);
+            } catch (error) {
+                console.warn("Error calling onDisconnected (maybe already disconnected):", error);
+            }
         };
         device.removeEventListener("disconnect", onDisconnect);
         device.addEventListener("disconnect", onDisconnect);