Commit 67f3a0d0 authored Dec 04, 2018 by Alexander Theissen Committed by Greg Kroah-Hartman Dec 05, 2018

usb: appledisplay: Set urb transfer_flags to URB_NO_TRANSFER_DMA_MAP



The driver does allocate a DMA address with usb_alloc_coherent but did
not set the appropriate flag to signal that transfer_dma is set to a
valid value.

Signed-off-by: Alexander Theissen <alex.theissen@me.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 440da5a3

drivers/usb/misc/appledisplay.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -260,6 +260,7 @@ static int appledisplay_probe(struct usb_interface *iface,
		usb_rcvintpipe(udev, int_in_endpointAddr),
		pdata->urbdata, ACD_URB_BUFFER_LEN, appledisplay_complete,
		pdata, 1);
		pdata->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
		if (usb_submit_urb(pdata->urb, GFP_KERNEL)) {
		retval = -EIO;
		dev_err(&iface->dev, "Submitting URB failed\n");

Admin message