From: David Vrabel Date: Wed, 8 Apr 2009 17:36:33 +0000 (+0000) Subject: WUSB: disconnect all devices when stopping a WUSB HCD X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8db324ec4322a15cf8819b8a7f0eff5aa98b2ff6;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git WUSB: disconnect all devices when stopping a WUSB HCD Make sure all WUSB devices are disconnected when stopping a WUSB HCD so that we don't leak the devices' wusb_dev structures. Signed-off-by: David Vrabel Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c index 386eaa22d21..63f200e4efb 100644 --- a/drivers/usb/wusbcore/devconnect.c +++ b/drivers/usb/wusbcore/devconnect.c @@ -396,7 +396,8 @@ static void __wusbhc_dev_disconnect(struct wusbhc *wusbhc, /* After a device disconnects, change the GTK (see [WUSB] * section 6.2.11.2). */ - wusbhc_gtk_rekey(wusbhc); + if (wusbhc->active) + wusbhc_gtk_rekey(wusbhc); /* The Wireless USB part has forgotten about the device already; now * khubd's timer will pick up the disconnection and remove the USB @@ -1084,15 +1085,21 @@ error_mmcie_set: * wusbhc_devconnect_stop - stop managing connected devices * @wusbhc: the WUSB HC * - * Removes the Host Info IE and stops the keep alives. - * - * FIXME: should this disconnect all devices? + * Disconnects any devices still connected, stops the keep alives and + * removes the Host Info IE. */ void wusbhc_devconnect_stop(struct wusbhc *wusbhc) { - cancel_delayed_work_sync(&wusbhc->keep_alive_timer); - WARN_ON(!list_empty(&wusbhc->cack_list)); + int i; + mutex_lock(&wusbhc->mutex); + for (i = 0; i < wusbhc->ports_max; i++) { + if (wusbhc->port[i].wusb_dev) + __wusbhc_dev_disconnect(wusbhc, &wusbhc->port[i]); + } + mutex_unlock(&wusbhc->mutex); + + cancel_delayed_work_sync(&wusbhc->keep_alive_timer); wusbhc_mmcie_rm(wusbhc, &wusbhc->wuie_host_info->hdr); kfree(wusbhc->wuie_host_info); wusbhc->wuie_host_info = NULL;