usb: fix number of mapped SG DMA entries

[~andy/linux] / drivers / usb / host / xhci-ring.c

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 133ce302c8607a593f31dcbf872cf0f9ce3870da..d030f0b2bfa26061e3173b641e9ca4d67e7cd961 100644 (file)
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2551,7 +2551,7 @@ static unsigned int count_sg_trbs_needed(struct xhci_hcd *xhci, struct urb *urb)
        struct scatterlist *sg;
 
        sg = NULL;
-       num_sgs = urb->num_sgs;
+       num_sgs = urb->num_mapped_sgs;
        temp = urb->transfer_buffer_length;
 
        xhci_dbg(xhci, "count sg list trbs: \n");
@@ -2735,7 +2735,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
                return -EINVAL;
 
        num_trbs = count_sg_trbs_needed(xhci, urb);
-       num_sgs = urb->num_sgs;
+       num_sgs = urb->num_mapped_sgs;
        total_packet_count = roundup(urb->transfer_buffer_length,
                        usb_endpoint_maxp(&urb->ep->desc));