redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

usbcore: fix incorrect type in assignment in usb_set_lpm_parameters()

Browse source 
In the bos usb_ss_cap_descriptor structure, bU2DevExitLat is of type __le16.
This value is used as it is, without being first converted to the CPU
byteorder, for the setup of usb device's usb3_lpm_parameters.
This patch fixes that by converting bU2DevExitLat field to the CPU byteorder
before the assignmenment to [udev/hub]_u2_del variables.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xenia Ragiadakou 2013-08-31 18:09:13 +03:00 committed by Greg Kroah-Hartman
parent 9df89d85b4
commit 4d96799524
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/usb/core/hub.c
View file

@ -315,9 +315,9 @@ static void usb_set_lpm_parameters(struct usb_device *udev)
return;
udev_u1_del = udev->bos->ss_cap->bU1devExitLat;
udev_u2_del = udev->bos->ss_cap->bU2DevExitLat;
udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat);
hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat;
hub_u2_del = udev->parent->bos->ss_cap->bU2DevExitLat;
hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat);
usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del,
hub, &udev->parent->u1_params, hub_u1_del);