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PR/51202: XHCI driver sends stale TRBs from a pipe previously opened 

Use xhci_host_dequeue in xhci_set_dequeue
This commit is contained in:
skrll 2016-06-05 10:45:16 +00:00
parent 62f45d0b81
commit 2eaae7df3f
1 changed files with 3 additions and 9 deletions
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12
sys/dev/usb/xhci.c
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@ -1,4 +1,4 @@
/* $NetBSD: xhci.c,v 1.55 2016/06/05 09:16:02 skrll Exp $ */
/* $NetBSD: xhci.c,v 1.56 2016/06/05 10:45:16 skrll Exp $ */
/*
* Copyright (c) 2013 Jonathan A. Kollasch
@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: xhci.c,v 1.55 2016/06/05 09:16:02 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: xhci.c,v 1.56 2016/06/05 10:45:16 skrll Exp $");
#ifdef _KERNEL_OPT
#include "opt_usb.h"
@ -1356,13 +1356,7 @@ xhci_set_dequeue(struct usbd_pipe *pipe)
XHCIHIST_FUNC(); XHCIHIST_CALLED();
DPRINTFN(4, "slot %u dci %u", xs->xs_idx, dci, 0, 0);
memset(xr->xr_trb, 0, xr->xr_ntrb * XHCI_TRB_SIZE);
usb_syncmem(&xr->xr_dma, 0, xr->xr_ntrb * XHCI_TRB_SIZE,
BUS_DMASYNC_PREWRITE);
memset(xr->xr_cookies, 0, xr->xr_ntrb * sizeof(*xr->xr_cookies));
xr->xr_ep = 0;
xr->xr_cs = 1;
xhci_host_dequeue(xr);
/* set DCS */
trb.trb_0 = xhci_ring_trbp(xr, 0) | 1; /* XXX */