trace-view: Handle case that cell has no text

If for some reason a cell in a column contains no text, then
exit the data_func, otherwise we may segfault.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/trace-view.c b/trace-view.c
index e99a8af..6dd72ee 100644
--- a/trace-view.c
+++ b/trace-view.c
@@ -123,6 +123,9 @@ void trace_view_data_func(GtkTreeViewColumn *column, GtkCellRenderer *renderer,
                         "font-desc", &pfd, /* apparently don't have to free this */
                         NULL);
 
+        if (!text)
+                goto out;
+
         /* Make sure there is enough room to render the column label. */
         str = text;
         str_len = strlen(str);
@@ -148,8 +151,9 @@ void trace_view_data_func(GtkTreeViewColumn *column, GtkCellRenderer *renderer,
                         gtk_tree_view_column_set_fixed_width(column, new_w);
         }
 
-        g_value_unset(&val);
         g_free(text);
+ out:
+        g_value_unset(&val);
 }
 
 void