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in ehci_softintr() when looping over the active xfers, save the next pointer 

before calling ehci_check_intr(), since that will free the xfer structure
if the xfer is complete.
This commit is contained in:
chs 2004-01-09 09:19:33 +00:00
parent e6d7ceae15
commit 3c9eb7a6c4
1 changed files with 6 additions and 4 deletions
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10
sys/dev/usb/ehci.c
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@ -1,4 +1,4 @@
/* $NetBSD: ehci.c,v 1.52 2004/01/07 09:17:47 jdolecek Exp $ */
/* $NetBSD: ehci.c,v 1.53 2004/01/09 09:19:33 chs Exp $ */
/*
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -77,7 +77,7 @@ umass0: using SCSI over Bulk-Only
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ehci.c,v 1.52 2004/01/07 09:17:47 jdolecek Exp $");
__KERNEL_RCSID(0, "$NetBSD: ehci.c,v 1.53 2004/01/09 09:19:33 chs Exp $");
#include "ohci.h"
#include "uhci.h"
@ -619,7 +619,7 @@ void
ehci_softintr(void *v)
{
ehci_softc_t *sc = v;
struct ehci_xfer *ex;
struct ehci_xfer *ex, *nextex;
DPRINTFN(10,("%s: ehci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev),
sc->sc_bus.intr_context));
@ -632,8 +632,10 @@ ehci_softintr(void *v)
* An interrupt just tells us that something is done, we have no
* clue what, so we need to scan through all active transfers. :-(
*/
for (ex = LIST_FIRST(&sc->sc_intrhead); ex; ex = LIST_NEXT(ex, inext))
for (ex = LIST_FIRST(&sc->sc_intrhead); ex; ex = nextex) {
nextex = LIST_NEXT(ex, inext);
ehci_check_intr(sc, ex);
}
if (sc->sc_softwake) {
sc->sc_softwake = 0;