Launcher: fix a crash on searching locations

When hitting return multiple times, could hit a null-pointer
crash here.

diff --git a/src/GUI/LocationWidget.cxx b/src/GUI/LocationWidget.cxx
index 162a7c5d9fcf4d0910cde7b076125d203680d459..7c5ae624ecd806d934c4325c816a9b0f9f36f4e8 100644 (file)
--- a/src/GUI/LocationWidget.cxx
+++ b/src/GUI/LocationWidget.cxx
@@ -316,6 +316,10 @@ private slots:
 
     void onSearchResultsPoll()
     {
+        if (m_search.isNull()) {
+            return;
+        }
+        
         PositionedIDVec newIds = m_search->results();
 
         beginInsertRows(QModelIndex(), m_ids.size(), newIds.size() - 1);