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    Subject[PATCH 4.14 38/54] usb: host: ehci: use correct device pointer for dma ops
    Date
    4.14-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Peter Chen <hzpeterchen@gmail.com>

    commit 02a10f061a3f8bca1b37332672f50a107198adbe upstream.

    commit a8c06e407ef9 ("usb: separate out sysdev pointer from usb_bus")
    converted to use hcd->self.sysdev for DMA operations instead of
    hcd->self.controller, but forgot to do it for hcd test mode. Replace
    the correct one in this commit.

    Fixes: a8c06e407ef9 ("usb: separate out sysdev pointer from usb_bus")
    Signed-off-by: Peter Chen <peter.chen@nxp.com>
    Acked-by: Alan Stern <stern@rowland.harvard.edu>
    Cc: stable <stable@vger.kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/usb/host/ehci-hub.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    --- a/drivers/usb/host/ehci-hub.c
    +++ b/drivers/usb/host/ehci-hub.c
    @@ -787,12 +787,12 @@ static struct urb *request_single_step_s
    atomic_inc(&urb->use_count);
    atomic_inc(&urb->dev->urbnum);
    urb->setup_dma = dma_map_single(
    - hcd->self.controller,
    + hcd->self.sysdev,
    urb->setup_packet,
    sizeof(struct usb_ctrlrequest),
    DMA_TO_DEVICE);
    urb->transfer_dma = dma_map_single(
    - hcd->self.controller,
    + hcd->self.sysdev,
    urb->transfer_buffer,
    urb->transfer_buffer_length,
    DMA_FROM_DEVICE);

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