Guard vector file writer against invalid layers

instead of crashing. Fixes #21856 Funded by: QCooperative.net
qgis · Apr 22, 2019 · adb646f · adb646f
1 parent 1337969
commit adb646f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/core/qgsvectorfilewriter.cpp b/src/core/qgsvectorfilewriter.cpp
@@ -2453,7 +2453,7 @@ QgsVectorFileWriter::SaveVectorOptions::SaveVectorOptions()
 
 QgsVectorFileWriter::WriterError QgsVectorFileWriter::prepareWriteAsVectorFormat( QgsVectorLayer *layer, const QgsVectorFileWriter::SaveVectorOptions &options, QgsVectorFileWriter::PreparedWriterDetails &details )
 {
-  if ( !layer )
+  if ( !layer || !layer->isValid() )
   {
     return ErrInvalidLayer;
   }