linux-kernel - [ 09/42] USB: yurex: Fix missing URB_NO_TRANSFER_DMA

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Message-Id: <20120424223254.250893094@linuxfoundation.org>
Date:	Tue, 24 Apr 2012 15:33:02 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk,
	Tomoki Sekiyama <tomoki.sekiyama@...il.com>
Subject: [ 09/42] USB: yurex: Fix missing URB_NO_TRANSFER_DMA_MAP flag in urb

3.0-stable review patch.  If anyone has any objections, please let me know.

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

From: Tomoki Sekiyama <tomoki.sekiyama@...il.com>

commit 532f17b5d59bf0deb6f1ff9bc1fb27d5b5011c09 upstream.

Current probing code is setting URB_NO_TRANSFER_DMA_MAP flag into a wrong urb
structure, and this causes BUG_ON with some USB host implementations.
This patch fixes the issue.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/misc/yurex.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -282,7 +282,7 @@ static int yurex_probe(struct usb_interf
 			 usb_rcvintpipe(dev->udev, dev->int_in_endpointAddr),
 			 dev->int_buffer, YUREX_BUF_SIZE, yurex_interrupt,
 			 dev, 1);
-	dev->cntl_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+	dev->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 	if (usb_submit_urb(dev->urb, GFP_KERNEL)) {
 		retval = -EIO;
 		err("Could not submitting URB");


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