diff options
| author | Bjørn Mork <bjorn@mork.no> | 2012-01-16 15:11:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-03 09:22:17 -0800 |
| commit | 7a55df4694e1758a7a1c3b1432e36fca0c859d6a (patch) | |
| tree | 530d128a71bc452e4067c90ffe578ee62734e13b | |
| parent | 4ac2b6d3cc5d685f8701a392bdea04a401333a11 (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>
| -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 d2cda2607bd5..f0deb9ef6838 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -723,7 +723,7 @@ 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) |