diff options
| author | Bjørn Mork <bjorn@mork.no> | 2012-01-16 15:11:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-24 23:33:50 +0100 |
| commit | cafbe85fb0d00d32988905c4978df433ca9b6512 (patch) | |
| tree | 6c4cb1ddd01bec48ae1808c848d5173afe772280 /drivers/usb/class | |
| parent | USB: cdc-wdm: no need to fill the in request URB every time it's submitted (diff) | |
| download | linux-cafbe85fb0d00d32988905c4978df433ca9b6512.tar.xz linux-cafbe85fb0d00d32988905c4978df433ca9b6512.zip | |
USB: cdc-wdm: better allocate a buffer that is at least as big as we tell the USB core
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>
Diffstat (limited to 'drivers/usb/class')
| -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 9734863a3a49..846dfa603447 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -696,7 +696,7 @@ 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) |