cc_frm: add global mutex for cc forms

Origin commit data
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Branch: ni/coolstream
Commit: 03d61d7828
Author: Thilo Graf <dbt@novatux.de>
Date: 2020-01-05 (Sun, 05 Jan 2020)


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No further description and justification available within origin commit message!

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This commit was generated by Migit

src/gui/components/cc_frm.cpp

@@ -436,6 +436,8 @@ void CComponentsForm::paintCCItems()
 
 	try{
 		for(size_t i=0; i<v_cc_items.size(); i++){
+			std::lock_guard<std::mutex> g(cc_frm_mutex);
+
 			if (!v_cc_items.at(i))
 				continue;