Qt: Make sure the packet diagram always has a field value.

Have FieldInformation::toString return "[no value for field]" instead of
an empty string so that the packet diagram always has something to
display.

1 files changed, 4 insertions, 0 deletions

diff --git a/ui/qt/utils/field_information.cpp b/ui/qt/utils/field_information.cpp
index 7dd1221084..01be5ba8f6 100644
--- a/ui/qt/utils/field_information.cpp
+++ b/ui/qt/utils/field_information.cpp
@@ -145,6 +145,10 @@ QString FieldInformation::toString()
         repr = repr_str;
     }
     wmem_free(NULL, repr_str);
+
+    if (repr.isEmpty()) {
+        return "[no value for field]";
+    }
     return repr;
 }