korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-19 10:14:23 +08:00
Code Issues Packages Projects Releases Wiki Activity

USB: cdc-wdm: better allocate a buffer that is at least as big as we tell the USB core

Browse Source 
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>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Bjørn Mork 2012-01-16 15:11:59 +01:00 committed by Greg Kroah-Hartman
parent 62aaf24dc1
commit 655e247daf
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/class/cdc-wdm.c
View File

@ -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)