xHCI: fix queue_trb in isoc transfer

Fix the more_trbs_coming field of queue_trb() in isoc transfer.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 62c70c2..55dc156 100644 (file)
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2900,6 +2900,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
        int running_total, trb_buff_len, td_len, td_remain_len, ret;
        u64 start_addr, addr;
        int i, j;
+       bool more_trbs_coming;
 
        ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
 
@@ -2965,9 +2966,11 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
                         */
                        if (j < trbs_per_td - 1) {
                                field |= TRB_CHAIN;
+                               more_trbs_coming = true;
                        } else {
                                td->last_trb = ep_ring->enqueue;
                                field |= TRB_IOC;
+                               more_trbs_coming = false;
                        }
 
                        /* Calculate TRB length */
@@ -2980,7 +2983,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
                        length_field = TRB_LEN(trb_buff_len) |
                                remainder |
                                TRB_INTR_TARGET(0);
-                       queue_trb(xhci, ep_ring, false, false,
+                       queue_trb(xhci, ep_ring, false, more_trbs_coming,
                                lower_32_bits(addr),
                                upper_32_bits(addr),
                                length_field,