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fix: default routes are removed correctly if no DAG with preferred parent is available

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This commit is contained in:
Jens Dede 2013-07-23 15:35:47 +02:00
parent 10f64c0ce8
commit 9dd5af78c8
1 changed files with 3 additions and 1 deletions
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4
core/net/rpl/rpl-dag.c
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@ -703,7 +703,9 @@ rpl_remove_parent(rpl_dag_t *dag, rpl_parent_t *parent)
void
rpl_nullify_parent(rpl_dag_t *dag, rpl_parent_t *parent)
{
if(parent == dag->preferred_parent) {
// local repair calls nullification because the preferred parent is NULL!
// So check if parent is NULL to trigger uip_ds6_defrt_rm.
if(parent == dag->preferred_parent || dag->preferred_parent == NULL) {
dag->preferred_parent = NULL;
dag->rank = INFINITE_RANK;
if(dag->joined) {