eigrpd: Don't crash on a `no network A.B.C.D/M`

This command was crashing.  This fixes the crash
we are still not behaving quite correctly on
handling routes we have learned from those peers
covered by the network statement.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

1 files changed, 7 insertions, 11 deletions

diff --git a/eigrpd/eigrp_interface.c b/eigrpd/eigrp_interface.c
index e6cfe1deea..4ad1005f2f 100644
--- a/eigrpd/eigrp_interface.c
+++ b/eigrpd/eigrp_interface.c
@@ -114,6 +114,8 @@ int eigrp_if_delete_hook(struct interface *ifp)
 	eigrp = ei->eigrp;
 	listnode_delete(eigrp->eiflist, ei);
 
+	eigrp_fifo_free(ei->obuf);
+
 	XFREE(MTYPE_EIGRP_IF_INFO, ifp->info);
 	ifp->info = NULL;
 
@@ -265,16 +267,11 @@ void eigrp_if_stream_unset(struct eigrp_interface *ei)
 {
 	struct eigrp *eigrp = ei->eigrp;
 
-	if (ei->obuf) {
-		eigrp_fifo_free(ei->obuf);
-		ei->obuf = NULL;
-
-		if (ei->on_write_q) {
-			listnode_delete(eigrp->oi_write_q, ei);
-			if (list_isempty(eigrp->oi_write_q))
-				thread_cancel(eigrp->t_write);
-			ei->on_write_q = 0;
-		}
+	if (ei->on_write_q) {
+		listnode_delete(eigrp->oi_write_q, ei);
+		if (list_isempty(eigrp->oi_write_q))
+			thread_cancel(eigrp->t_write);
+		ei->on_write_q = 0;
 	}
 }
 
@@ -351,7 +348,6 @@ void eigrp_if_free(struct eigrp_interface *ei, int source)
 
 	eigrp_if_down(ei);
 
-	list_delete(&ei->nbrs);
 	listnode_delete(ei->eigrp->eiflist, ei);
 }