From db93b548db812056d4bf02ce487fe76831a8547c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Sun, 11 Mar 2012 23:07:38 +0100
Subject: [PATCH] Check for a valid plugin_shutdown function when unloading
 plugins

Fixes related segfault
---
 library/PluginManager.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/library/PluginManager.cpp b/library/PluginManager.cpp
index 824d7a23e..d36ba6659 100644
--- a/library/PluginManager.cpp
+++ b/library/PluginManager.cpp
@@ -234,8 +234,10 @@ bool Plugin::unload()
     // if we are actually loaded
     if(state == PS_LOADED)
     {
-        // notify plugin about shutdown
-        command_result cr = plugin_shutdown(con);
+        // notify plugin about shutdown, if it has a shutdown function
+        command_result cr = CR_OK;
+        if(plugin_shutdown)
+            cr = plugin_shutdown(con);
         // wait for all calls to finish
         access->wait();
         // cleanup...