TabularDecView: Prevent a race condition

[pulseview.git] / pv / views / tabular_decoder / model.cpp

diff --git a/pv/views/tabular_decoder/model.cpp b/pv/views/tabular_decoder/model.cpp
index b87bf05869ef1f118ad69853ff3899ec4e1d097a..d85bf6aac7721d38106292254b811c30896426e7 100644 (file)
--- a/pv/views/tabular_decoder/model.cpp
+++ b/pv/views/tabular_decoder/model.cpp
@@ -164,8 +164,11 @@ uint8_t AnnotationCollectionModel::first_hidden_column() const
 QVariant AnnotationCollectionModel::headerData(int section, Qt::Orientation orientation,
        int role) const
 {
+       if ((section < 0) || (section >= (int)header_data_.size()))
+               return QVariant();
+
        if ((orientation == Qt::Horizontal) && (role == Qt::DisplayRole))
-               return header_data_.at(section);
+               return header_data_[section];
 
        return QVariant();
 }