USB: EHCI: No SSPLIT allowed in uframe 7

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / usb / host / ehci-sched.c

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 4b0903c..1fc2bef 100644 (file)
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1286,6 +1286,10 @@ sitd_slot_ok (
 
        mask = stream->raw_mask << (uframe & 7);
 
+       /* for OUT, don't wrap SSPLIT into H-microframe 7 */
+       if (((stream->raw_mask & 0xff) << (uframe & 7)) >= (1 << 7))
+               return 0;
+
        /* for IN, don't wrap CSPLIT into the next frame */
        if (mask & ~0xffff)
                return 0;