1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index f692e74f269c..d42a738cdaa7 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -183,13 +183,14 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer
         while (last_trb(xhci, ring, ring->enq_seg, next)) {
                 if (!consumer) {
                         if (ring != xhci->event_ring) {
+                                next->link.control &= ~TRB_CHAIN;
+                                next->link.control |= chain;
                                 /* Give this link TRB to the hardware */
+                                wmb();
                                 if (next->link.control & TRB_CYCLE)
                                         next->link.control &= (u32) ~TRB_CYCLE;
                                 else
                                         next->link.control |= (u32) TRB_CYCLE;
-                                next->link.control &= ~TRB_CHAIN;
-                                next->link.control |= chain;
                         }
                         /* Toggle the cycle bit after the last ring segment. */
                         if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) {