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free memory on detach, fixes memory leak, from Andreas Jacobs per

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PR kern/39322
This commit is contained in:
drochner 2008-08-13 09:43:56 +00:00
parent 13a39ab5d3
commit fdb6ecdb00
1 changed files with 8 additions and 3 deletions
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11
sys/dev/usb/ohci.c
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@ -1,4 +1,4 @@
/* $NetBSD: ohci.c,v 1.195 2008/06/28 17:42:53 bouyer Exp $ */
/* $NetBSD: ohci.c,v 1.196 2008/08/13 09:43:56 drochner Exp $ */
/* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */
/*
@ -41,7 +41,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.195 2008/06/28 17:42:53 bouyer Exp $");
__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.196 2008/08/13 09:43:56 drochner Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -385,6 +385,7 @@ int
ohci_detach(struct ohci_softc *sc, int flags)
{
int rv = 0;
usbd_xfer_handle xfer;
if (sc->sc_child != NULL)
rv = config_detach(sc->sc_child, flags);
@ -396,7 +397,11 @@ ohci_detach(struct ohci_softc *sc, int flags)
usb_delay_ms(&sc->sc_bus, 300); /* XXX let stray task complete */
/* free data structures XXX */
usb_freemem(&sc->sc_bus, &sc->sc_hccadma);
while((xfer = SIMPLEQ_FIRST(&sc->sc_free_xfers)) != NULL) {
SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, next);
free(xfer, M_USB);
}
return (rv);
}