Fix an off by one.

OK miod@, claudio@

diff --git a/sys/dev/pci/if_mwx.c b/sys/dev/pci/if_mwx.c
index 698b83d..9b3466a 100644 (file)
--- a/sys/dev/pci/if_mwx.c
+++ b/sys/dev/pci/if_mwx.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: if_mwx.c,v 1.2 2024/02/21 12:08:05 jsg Exp $ */
+/*     $OpenBSD: if_mwx.c,v 1.3 2024/05/20 21:22:43 martijn Exp $ */
 /*
  * Copyright (c) 2022 Claudio Jeker <claudio@openbsd.org>
  * Copyright (c) 2021 MediaTek Inc.
@@ -1426,7 +1426,7 @@ mwx_txwi_alloc(struct mwx_softc *sc, int count)
                }
        }
 
-       for (i = count; i >= MT_PACKET_ID_FIRST; i--)
+       for (i = count - 1; i >= MT_PACKET_ID_FIRST; i--)
                LIST_INSERT_HEAD(&q->mt_freelist, &q->mt_data[i], mt_entry);
 
        return 0;