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-rw-r--r--drivers/usb/host/ehci-hcd.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 8c3e860bfce3..a02dcff5eb21 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -764,8 +764,14 @@ static int ehci_urb_enqueue (
764 INIT_LIST_HEAD (&qtd_list); 764 INIT_LIST_HEAD (&qtd_list);
765 765
766 switch (usb_pipetype (urb->pipe)) { 766 switch (usb_pipetype (urb->pipe)) {
767 // case PIPE_CONTROL: 767 case PIPE_CONTROL:
768 // case PIPE_BULK: 768 /* qh_completions() code doesn't handle all the fault cases
769 * in multi-TD control transfers. Even 1KB is rare anyway.
770 */
771 if (urb->transfer_buffer_length > (16 * 1024))
772 return -EMSGSIZE;
773 /* FALLTHROUGH */
774 /* case PIPE_BULK: */
769 default: 775 default:
770 if (!qh_urb_transaction (ehci, urb, &qtd_list, mem_flags)) 776 if (!qh_urb_transaction (ehci, urb, &qtd_list, mem_flags))
771 return -ENOMEM; 777 return -ENOMEM;