lsteamclient: Return NULL from manual_convert_SteamAPI_CheckCallbackR…

…egistered_t() if win_func is NULL. CW-Bug-Id: #21313
ValveSoftware · Oct 11, 2022 · 1da32ef · 1da32ef
1 parent 9e0ca1b
commit 1da32ef
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/lsteamclient/steamclient_wrappers.c b/lsteamclient/steamclient_wrappers.c
@@ -348,6 +348,8 @@ static uint32 lin_SteamAPI_CheckCallbackRegistered_t(int cb)
 
 void *manual_convert_SteamAPI_CheckCallbackRegistered_t(void *win_func)
 {
-    stored_SteamAPI_CheckCallbackRegistered_t = (void*)win_func;
+    if (!(stored_SteamAPI_CheckCallbackRegistered_t = (void*)win_func))
+        return NULL;
+
     return &lin_SteamAPI_CheckCallbackRegistered_t;
 }