Patch "usb: host: ehci: use correct device pointer for dma ops" has been added to the 4.14-stable tree

Patch "usb: host: ehci: use correct device pointer for dma ops" has been added to the 4.14-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: host: ehci: use correct device pointer for dma ops

to the 4.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     usb-host-ehci-use-correct-device-pointer-for-dma-ops.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 02a10f061a3f8bca1b37332672f50a107198adbe Mon Sep 17 00:00:00 2001
From: Peter Chen <hzpeterchen@gmail.com>
Date: Thu, 1 Feb 2018 12:26:43 +0800
Subject: usb: host: ehci: use correct device pointer for dma ops

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);


Patches currently in stable-queue which might be from hzpeterchen@gmail.com are

queue-4.14/usb-host-ehci-use-correct-device-pointer-for-dma-ops.patch