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HUB class must cancel any pending interrupt IN transfers before destroying the endpoint

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This commit is contained in:
Gregory Nutt
2015-04-24 12:18:25 -06:00
parent 7d7ab442e1
commit becfe4ef9d
4 changed files with 130 additions and 29 deletions
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drivers/usbhost/usbhost_hub.c
+13 -6
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@@ -824,14 +824,14 @@ static void usbhost_hub_event(FAR void *arg)
ctrlreq->type = USBHUB_REQ_TYPE_PORT;
ctrlreq->req = USB_REQ_SETFEATURE;
usbhost_putle16(ctrlreq->value, (USBHUB_PORT_FEAT_RESET << 8));
usbhost_putle16(ctrlreq->value, USBHUB_PORT_FEAT_RESET);
usbhost_putle16(ctrlreq->index, port);
usbhost_putle16(ctrlreq->len, 0);
ret = DRVR_CTRLOUT(hport->drvr, hport->ep0, ctrlreq, NULL);
if (ret < 0)
{
udbg("ERROR: ailed to reset port %d: %d\n", port, ret);
udbg("ERROR: Failed to reset port %d: %d\n", port, ret);
continue;
}
@@ -985,6 +985,17 @@ static void usbhost_disconnect_event(FAR void *arg)
flags = irqsave();
priv->disconnected = true;
/* Cancel any pending transfers on the interrupt IN pipe */
DRVR_CANCEL(hport->drvr, priv->intin);
/* Cancel any pending port status change events */
work_cancel(EVENT_WORK, &priv->work);
#if EVENT_WORK != POLL_WORK
work_cancel(POLL_WORK, &priv->work);
#endif
/* Disable power to all downstream ports */
(void)usbhost_hubpwr(priv, hport, false);
@@ -997,10 +1008,6 @@ static void usbhost_disconnect_event(FAR void *arg)
DRVR_IOFREE(hport->drvr, priv->buffer);
/* Destroy EP0 */
DRVR_EPFREE(hport->drvr, priv->intin);
/* Destroy the interrupt IN endpoint */
DRVR_EPFREE(hport->drvr, priv->intin);