tui: Fix segfault when filter is used

Honggyu reported that tui crashed when filter is used. It was from add_remaining_node() called at the end of processing. If a task has no function due to filter, fork() exit entry will remain and it makes to caller the function with no graph setup for the task. Fixed: #611 Signed-off-by: Namhyung Kim <[email protected]>
namhyung · Nov 28, 2018 · aa51e1f · aa51e1f
1 parent 8cddd5c
commit aa51e1f
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/cmds/tui.c b/cmds/tui.c
@@ -366,6 +366,10 @@ static void update_report_node(struct uftrace_task_reader *task, char *symname,
 	struct tui_report_node *node;
 	struct tui_graph_node *graph_node;
 
+	/* graph is not set probably due to filters (or error?) */
+	if (tg->node == NULL)
+		return;
+
 	node = (struct tui_report_node *)report_find_node(&tui_report.name_tree,
 							  symname);
 	if (node == NULL) {