* give a part of its callchain to the created child.
* Then create another child to host the given callchain of new branch
*/
-static void
+static int
split_add_child(struct callchain_node *parent,
struct callchain_cursor *cursor,
struct callchain_list *to_split,
/* split */
new = create_child(parent, true);
+ if (new == NULL)
+ return -1;
/* split the callchain and move a part to the new child */
old_tail = parent->val.prev;
node = callchain_cursor_current(cursor);
new = add_child(parent, cursor, period);
if (new == NULL)
- return;
+ return -1;
/*
* This is second child since we moved parent's children
parent->hit = period;
parent->count = 1;
}
+ return 0;
}
static enum match_result
/* we match only a part of the node. Split it and add the new chain */
if (matches < root->val_nr) {
- split_add_child(root, cursor, cnode, start, matches, period);
+ if (split_add_child(root, cursor, cnode, start, matches,
+ period) < 0)
+ return MATCH_ERROR;
+
return MATCH_EQ;
}