This is a note to let you know that I've just added the patch titled
USB: yurex: Remove allocation of coherent buffer for setup-packet buffer
to the 3.3-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-yurex-remove-allocation-of-coherent-buffer-for-setup-packet-buffer.patch
and it can be found in the queue-3.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 523fc5c14f6cad283e5a266eba0e343aed6e73d5 Mon Sep 17 00:00:00 2001
From: Tomoki Sekiyama <[email protected]>
Date: Fri, 30 Mar 2012 08:51:28 +0900
Subject: USB: yurex: Remove allocation of coherent buffer for setup-packet
buffer
From: Tomoki Sekiyama <[email protected]>
commit 523fc5c14f6cad283e5a266eba0e343aed6e73d5 upstream.
Removes allocation of coherent buffer for the control-request setup-packet
buffer from the yurex driver. Using coherent buffers for setup-packet is
obsolete and does not work with some USB host implementations.
Signed-off-by: Tomoki Sekiyama <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/misc/yurex.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -99,9 +99,7 @@ static void yurex_delete(struct kref *kr
usb_put_dev(dev->udev);
if (dev->cntl_urb) {
usb_kill_urb(dev->cntl_urb);
- if (dev->cntl_req)
- usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
- dev->cntl_req, dev->cntl_urb->setup_dma);
+ kfree(dev->cntl_req);
if (dev->cntl_buffer)
usb_free_coherent(dev->udev, YUREX_BUF_SIZE,
dev->cntl_buffer, dev->cntl_urb->transfer_dma);
@@ -234,9 +232,7 @@ static int yurex_probe(struct usb_interf
}
/* allocate buffer for control req */
- dev->cntl_req = usb_alloc_coherent(dev->udev, YUREX_BUF_SIZE,
- GFP_KERNEL,
- &dev->cntl_urb->setup_dma);
+ dev->cntl_req = kmalloc(YUREX_BUF_SIZE, GFP_KERNEL);
if (!dev->cntl_req) {
err("Could not allocate cntl_req");
goto error;
Patches currently in stable-queue which might be from [email protected]
are
queue-3.3/usb-yurex-fix-missing-urb_no_transfer_dma_map-flag-in-urb.patch
queue-3.3/usb-yurex-remove-allocation-of-coherent-buffer-for-setup-packet-buffer.patch
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