Fix some memory access issues

src/core/AutomationPattern.cpp

@@ -867,7 +867,7 @@ void AutomationPattern::generateTangents()
 void AutomationPattern::generateTangents( timeMap::const_iterator it,
 							int numToGenerate )
 {
-	if( m_timeMap.size() < 2 )
+	if( m_timeMap.size() < 2 && numToGenerate > 0 )
 	{
 		m_tangents[it.key()] = 0;
 		return;

src/core/EnvelopeAndLfoParameters.cpp

@@ -446,14 +446,14 @@ void EnvelopeAndLfoParameters::updateSampleVars()
 	{
 		sample_t * tmp = m_pahdEnv;
 		m_pahdEnv = new sample_t[m_pahdFrames];
-		delete tmp;
+		delete[] tmp;
 		m_pahdBufSize = m_pahdFrames;
 	}
 	if( m_rBufSize < m_rFrames )
 	{
 		sample_t * tmp = m_rEnv;
 		m_rEnv = new sample_t[m_rFrames];
-		delete tmp;
+		delete[] tmp;
 		m_rBufSize = m_rFrames;
 	}