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usb: hcd: use correct device pointer for dma ops 

commit a8c06e407e ("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 one instance.

This gets caught when DMA debugging is enabled since dma map
and unmap end up using different device pointers.

Fix it.

Fixes: a8c06e407e ("usb: separate out sysdev pointer from usb_bus")
Reported-by: Carlos Hernandez <ceh@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sekhar Nori 2017-04-03 13:56:52 +05:30 committed by Greg Kroah-Hartman
parent cb2e3d461b
commit bde654a55a
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/core/hcd.c
View File

@ -1436,7 +1436,7 @@ void usb_hcd_unmap_urb_setup_for_dma(struct usb_hcd *hcd, struct urb *urb)
{
if (IS_ENABLED(CONFIG_HAS_DMA) &&
(urb->transfer_flags & URB_SETUP_MAP_SINGLE))
dma_unmap_single(hcd->self.controller,
dma_unmap_single(hcd->self.sysdev,
urb->setup_dma,
sizeof(struct usb_ctrlrequest),
DMA_TO_DEVICE);