pinctrl: Fix dp_packet structure leak.

Buffered packets are always packets created by 'dp_packet_clone_data()'
i.e. they are malloced. It's not enough to free the packet data,
dp_packet structure must be freed too. 'dp_packet_delete()' will take
care of that.

Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Fixes: d7abfe3 ("OVN: add buffering support for ip packets")
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

ovn/controller/pinctrl.c

@@ -229,7 +229,7 @@ destroy_buffered_packets(struct buffered_packets *bp)
 
     while (bp->head != bp->tail) {
         bi = &bp->data[bp->head];
-        dp_packet_uninit(bi->p);
+        dp_packet_delete(bi->p);
         ofpbuf_uninit(&bi->ofpacts);
 
         bp->head = (bp->head + 1) % BUFFER_QUEUE_DEPTH;
@@ -267,7 +267,7 @@ buffered_push_packet(struct buffered_packets *bp,
 
     if (next == bp->head) {
         bi = &bp->data[bp->head];
-        dp_packet_uninit(bi->p);
+        dp_packet_delete(bi->p);
         ofpbuf_uninit(&bi->ofpacts);
         bp->head = (bp->head + 1) % BUFFER_QUEUE_DEPTH;
     }
@@ -296,7 +296,7 @@ buffered_send_packets(struct buffered_packets *bp, struct eth_addr *addr)
         queue_msg(ofputil_encode_packet_out(&po, proto));
 
         ofpbuf_uninit(&bi->ofpacts);
-        dp_packet_uninit(bi->p);
+        dp_packet_delete(bi->p);
 
         bp->head = (bp->head + 1) % BUFFER_QUEUE_DEPTH;
     }