Initialize ring read/write pointers to make sure that upon reinit, caused

by a suspend/resume cycle, the pointers are set to a sane default.

diff --git a/sys/dev/pci/if_bwfm_pci.c b/sys/dev/pci/if_bwfm_pci.c
index 949df27..924d20b 100644 (file)
--- a/sys/dev/pci/if_bwfm_pci.c
+++ b/sys/dev/pci/if_bwfm_pci.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: if_bwfm_pci.c,v 1.52 2021/06/22 16:36:59 patrick Exp $        */
+/*     $OpenBSD: if_bwfm_pci.c,v 1.53 2021/08/31 20:58:51 patrick Exp $        */
 /*
  * Copyright (c) 2010-2016 Broadcom Corporation
  * Copyright (c) 2017 Patrick Wildt <patrick@blueri.se>
@@ -1158,6 +1158,8 @@ bwfm_pci_setup_ring(struct bwfm_pci_softc *sc, struct bwfm_pci_msgring *ring,
 {
        ring->w_idx_addr = w_idx + idx * idx_off;
        ring->r_idx_addr = r_idx + idx * idx_off;
+       ring->w_ptr = 0;
+       ring->r_ptr = 0;
        ring->nitem = nitem;
        ring->itemsz = itemsz;
        bwfm_pci_ring_write_rptr(sc, ring);