diff options
| author | Bjørn Mork <bjorn@mork.no> | 2012-01-16 15:11:59 +0100 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-02-08 14:41:05 -0800 |
| commit | a5ab014ca5dce7cd039a6080b480f7e516ffc59a (patch) | |
| tree | 8914da55ec1a1f9f145a60bd251aa46bb6e46357 /drivers/usb | |
| parent | 2f136d2a161a97eed107df2efa680577e18c7605 (diff) | |
USB: cdc-wdm: better allocate a buffer that is at least as big as we tell the USB core
commit 655e247daf52b202a6c2d0f8a06dd2051e756ce4 upstream.
As it turns out, there was a mismatch between the allocated inbuf size
(desc->bMaxPacketSize0, typically something like 64) and the length we
specified in the URB (desc->wMaxCommand, typically something like 2048)
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I00872baa6896dfdd076fdcfc57956f1420973a7f
Reviewed-on: http://git-master/r/79687
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/class/cdc-wdm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index ec282b59f5e1..8516a8c10e1e 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -718,7 +718,7 @@ next_desc: goto err; desc->inbuf = usb_alloc_coherent(interface_to_usbdev(intf), - desc->bMaxPacketSize0, + desc->wMaxCommand, GFP_KERNEL, &desc->response->transfer_dma); if (!desc->inbuf) |