From 4174ecf4c3ff004f2dc1ef3acc0e3146bbece48e Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Sat, 1 Sep 2018 00:44:00 +0100
Subject: [PATCH] Only validate via size vs drill if both are specified.

Fixes: lp:1789349
* https://bugs.launchpad.net/kicad/+bug/1789349
---
 pcbnew/dialogs/dialog_track_via_properties.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pcbnew/dialogs/dialog_track_via_properties.cpp b/pcbnew/dialogs/dialog_track_via_properties.cpp
index 0014ad6a69..666499b7df 100644
--- a/pcbnew/dialogs/dialog_track_via_properties.cpp
+++ b/pcbnew/dialogs/dialog_track_via_properties.cpp
@@ -370,7 +370,9 @@ bool DIALOG_TRACK_VIA_PROPERTIES::TransferDataFromWindow()
         if( !m_viaDiameter.Validate( true ) || !m_viaDrill.Validate( true ) )
             return false;
 
-        if( !m_trackNetclass->IsChecked() && m_viaDiameter.GetValue() <= m_viaDrill.GetValue() )
+        if( m_ViaDiameterCtrl->IsEnabled() && !m_viaDiameter.IsIndeterminate()
+            && m_ViaDrillCtrl->IsEnabled() && !m_viaDrill.IsIndeterminate()
+            && m_viaDiameter.GetValue() <= m_viaDrill.GetValue() )
         {
             DisplayError( GetParent(), _( "Via drill size must be smaller than via diameter" ) );
             m_ViaDrillCtrl->SelectAll();