commit: 655e247daf52b202a6c2d0f8a06dd2051e756ce4 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <[email protected]> Date: Mon, 16 Jan 2012 15:11:59 +0100 Subject: USB: cdc-wdm: better allocate a buffer that is at least as big as we tell the USB core MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
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 <[email protected]> Cc: Oliver Neukum <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- 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 07aa676..a940ad9 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) -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
