From 2e97e9f002f51aed598ed4743b85c088fccaaf82 Mon Sep 17 00:00:00 2001
From: Paul Gofman <pgofman@codeweavers.com>
Date: Thu, 18 Jul 2024 17:13:21 -0600
Subject: [PATCH] lsteamclient: Reset last error in Steam_BGetCallback() on no
 callback return.

CW-Bug-Id: #24028
---
 lsteamclient/steamclient_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lsteamclient/steamclient_main.c b/lsteamclient/steamclient_main.c
index 91627097..506e54e9 100644
--- a/lsteamclient/steamclient_main.c
+++ b/lsteamclient/steamclient_main.c
@@ -487,7 +487,11 @@ int8_t CDECL Steam_BGetCallback( int32_t pipe, w_CallbackMsg_t *win_msg, int32_t
 
 next_event:
     STEAMCLIENT_CALL( steamclient_Steam_BGetCallback, &params );
-    if (!params._ret) return FALSE;
+    if (!params._ret)
+    {
+        SetLastError(0);
+        return FALSE;
+    }
 
     if (!(win_msg->m_pubParam = HeapAlloc( GetProcessHeap(), 0, win_msg->m_cubParam ))) return FALSE;
     last_callback_data = win_msg->m_pubParam;