Frequency Scanner: initialize pointer to FrequencyScanner. Fixes #2262

plugins/channelrx/freqscanner/freqscanner.cpp

@@ -153,7 +153,7 @@ void FreqScanner::start()
 
     qDebug("FreqScanner::start");
     m_thread = new QThread();
-    m_basebandSink = new FreqScannerBaseband();
+    m_basebandSink = new FreqScannerBaseband(this);
     m_basebandSink->setFifoLabel(QString("%1 [%2:%3]")
         .arg(m_channelId)
         .arg(m_deviceAPI->getDeviceSetIndex())

plugins/channelrx/freqscanner/freqscannerbaseband.cpp

@@ -27,7 +27,8 @@
 
 MESSAGE_CLASS_DEFINITION(FreqScannerBaseband::MsgConfigureFreqScannerBaseband, Message)
 
-FreqScannerBaseband::FreqScannerBaseband() :
+FreqScannerBaseband::FreqScannerBaseband(FreqScanner *freqScanner) :
+    m_freqScanner(freqScanner),
     m_messageQueueToGUI(nullptr)
 {
     qDebug("FreqScannerBaseband::FreqScannerBaseband");

plugins/channelrx/freqscanner/freqscannerbaseband.h

@@ -63,7 +63,7 @@ public:
         { }
     };
 
-    FreqScannerBaseband();
+    FreqScannerBaseband(FreqScanner *freqScanner);
     ~FreqScannerBaseband();
     void reset();
     void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end);