diff --git a/common/geometry/shape_poly_set.cpp b/common/geometry/shape_poly_set.cpp
index b6bad11f1a..fdf43f457e 100644
--- a/common/geometry/shape_poly_set.cpp
+++ b/common/geometry/shape_poly_set.cpp
@@ -515,11 +515,12 @@ bool SHAPE_POLY_SET::Parse( std::stringstream& aStream )
 
     aStream >> tmp;
 
-    unsigned int n_polys = atoi( tmp.c_str() );
-    if(n_polys < 0)
+    int n_polys = atoi( tmp.c_str() );
+
+    if( n_polys < 0 )
         return false;
 
-    for( unsigned i = 0; i < n_polys; i++ )
+    for( int i = 0; i < n_polys; i++ )
     {
         ClipperLib::Paths paths;
 
@@ -528,17 +529,18 @@ bool SHAPE_POLY_SET::Parse( std::stringstream& aStream )
             return false;
 
         aStream >> tmp;
-        unsigned int n_outlines = atoi( tmp.c_str() );
-        if(n_outlines < 0)
+        int n_outlines = atoi( tmp.c_str() );
+
+        if( n_outlines < 0 )
             return false;
 
-        for( unsigned j = 0; j < n_outlines; j++)
+        for( int j = 0; j < n_outlines; j++ )
         {
             ClipperLib::Path outline;
 
             aStream >> tmp;
-            unsigned int n_vertices = atoi( tmp.c_str() );
-            for( unsigned v = 0; v < n_vertices; v++)
+            int n_vertices = atoi( tmp.c_str() );
+            for( int v = 0; v < n_vertices; v++ )
             {
                 ClipperLib::IntPoint p;
 
diff --git a/eeschema/dialogs/dialog_lib_edit_pin_table.cpp b/eeschema/dialogs/dialog_lib_edit_pin_table.cpp
index 28b4938cc7..58269191a5 100644
--- a/eeschema/dialogs/dialog_lib_edit_pin_table.cpp
+++ b/eeschema/dialogs/dialog_lib_edit_pin_table.cpp
@@ -526,6 +526,7 @@ void DIALOG_LIB_EDIT_PIN_TABLE::DataViewModel::Group::Add( Pin* aPin )
 
     case 1:
         m_Members.front()->SetGroup( this );
+        break;
 
     default:
         aPin->SetGroup( this );
diff --git a/eeschema/sch_bus_entry.cpp b/eeschema/sch_bus_entry.cpp
index 6b3e3b6f8a..019a46eb05 100644
--- a/eeschema/sch_bus_entry.cpp
+++ b/eeschema/sch_bus_entry.cpp
@@ -51,6 +51,8 @@ SCH_BUS_ENTRY_BASE::SCH_BUS_ENTRY_BASE( KICAD_T aType, const wxPoint& pos, char
 
     if( shape == '/' )
         m_size.y = -100;
+
+    m_isDanglingStart = m_isDanglingEnd = true;
 }
 
 SCH_BUS_WIRE_ENTRY::SCH_BUS_WIRE_ENTRY( const wxPoint& pos, char shape ) :
diff --git a/pcbnew/router/pns_diff_pair.cpp b/pcbnew/router/pns_diff_pair.cpp
index 34d25fb567..769b48dbc6 100644
--- a/pcbnew/router/pns_diff_pair.cpp
+++ b/pcbnew/router/pns_diff_pair.cpp
@@ -66,8 +66,11 @@ PNS_DP_PRIMITIVE_PAIR::PNS_DP_PRIMITIVE_PAIR( const VECTOR2I& aAnchorP, const VE
 
 PNS_DP_PRIMITIVE_PAIR::PNS_DP_PRIMITIVE_PAIR( const PNS_DP_PRIMITIVE_PAIR& aOther )
 {
+    m_primP = m_primN = NULL;
+
     if( aOther.m_primP )
         m_primP = aOther.m_primP->Clone();
+
     if( aOther.m_primN )
         m_primN = aOther.m_primN->Clone();
 
diff --git a/pcbnew/router/pns_router.cpp b/pcbnew/router/pns_router.cpp
index 7278fc6cc2..b235286d6c 100644
--- a/pcbnew/router/pns_router.cpp
+++ b/pcbnew/router/pns_router.cpp
@@ -94,7 +94,10 @@ PNS_PCBNEW_CLEARANCE_FUNC::PNS_PCBNEW_CLEARANCE_FUNC( PNS_ROUTER *aRouter ) :
     }
 
     m_overrideEnabled = false;
-    m_defaultClearance = 254000;    // aBoard->m_NetClasses.Find ("Default clearance")->GetClearance();
+    m_defaultClearance = Millimeter2iu( 0.254 );    // aBoard->m_NetClasses.Find ("Default clearance")->GetClearance();
+    m_overrideNetA = 0;
+    m_overrideNetB = 0;
+    m_overrideClearance = 0;
 }