port-array: Add port_array_delete() function.

port_array_delete(pa, idx) is equivalent to port_array_set(pa, idx, NULL),
but it never allocates memory and avoids conditionals.

1 files changed, 1 insertions, 1 deletions

diff --git a/ofproto/pinsched.c b/ofproto/pinsched.c
index 6af2bb676..d749ee4e6 100644
--- a/ofproto/pinsched.c
+++ b/ofproto/pinsched.c
@@ -70,7 +70,7 @@ dequeue_packet(struct pinsched *ps, struct ovs_queue *q,
     struct ofpbuf *packet = queue_pop_head(q);
     if (!q->n) {
         free(q);
-        port_array_set(&ps->queues, port_no, NULL);
+        port_array_delete(&ps->queues, port_no);
     }
     ps->n_queued--;
     return packet;