1 files changed, 19 insertions, 22 deletions

diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index db645936eedd..5631d89c8730 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -123,14 +123,10 @@ static struct uhci_td *uhci_alloc_td(struct uhci_hcd *uhci)
 
 static void uhci_free_td(struct uhci_hcd *uhci, struct uhci_td *td)
 {
-        if (!list_empty(&td->list)) {
-                dev_warn(uhci_dev(uhci), "td %p still in list!\n", td);
-                WARN_ON(1);
-        }
-        if (!list_empty(&td->fl_list)) {
-                dev_warn(uhci_dev(uhci), "td %p still in fl_list!\n", td);
-                WARN_ON(1);
-        }
+        if (!list_empty(&td->list))
+                dev_WARN(uhci_dev(uhci), "td %p still in list!\n", td);
+        if (!list_empty(&td->fl_list))
+                dev_WARN(uhci_dev(uhci), "td %p still in fl_list!\n", td);
 
         dma_pool_free(uhci->td_pool, td, td->dma_handle);
 }
@@ -295,10 +291,8 @@ static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci,
 static void uhci_free_qh(struct uhci_hcd *uhci, struct uhci_qh *qh)
 {
         WARN_ON(qh->state != QH_STATE_IDLE && qh->udev);
-        if (!list_empty(&qh->queue)) {
-                dev_warn(uhci_dev(uhci), "qh %p list not empty!\n", qh);
-                WARN_ON(1);
-        }
+        if (!list_empty(&qh->queue))
+                dev_WARN(uhci_dev(uhci), "qh %p list not empty!\n", qh);
 
         list_del(&qh->node);
         if (qh->udev) {
@@ -746,11 +740,9 @@ static void uhci_free_urb_priv(struct uhci_hcd *uhci,
 {
         struct uhci_td *td, *tmp;
 
-        if (!list_empty(&urbp->node)) {
-                dev_warn(uhci_dev(uhci), "urb %p still on QH's list!\n",
+        if (!list_empty(&urbp->node))
+                dev_WARN(uhci_dev(uhci), "urb %p still on QH's list!\n",
                                 urbp->urb);
-                WARN_ON(1);
-        }
 
         list_for_each_entry_safe(td, tmp, &urbp->td_list, list) {
                 uhci_remove_td_from_urbp(td);
@@ -1073,13 +1065,18 @@ static int uhci_submit_interrupt(struct uhci_hcd *uhci, struct urb *urb,
                 }
                 if (exponent < 0)
                         return -EINVAL;
-                qh->period = 1 << exponent;
-                qh->skel = SKEL_INDEX(exponent);
 
-                /* For now, interrupt phase is fixed by the layout
-                 * of the QH lists. */
-                qh->phase = (qh->period / 2) & (MAX_PHASE - 1);
-                ret = uhci_check_bandwidth(uhci, qh);
+                /* If the slot is full, try a lower period */
+                do {
+                        qh->period = 1 << exponent;
+                        qh->skel = SKEL_INDEX(exponent);
+
+                        /* For now, interrupt phase is fixed by the layout
+                         * of the QH lists.
+                         */
+                        qh->phase = (qh->period / 2) & (MAX_PHASE - 1);
+                        ret = uhci_check_bandwidth(uhci, qh);
+                } while (ret != 0 && --exponent >= 0);
                 if (ret)
                         return ret;
         } else if (qh->period > urb->interval)