A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 19:51:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

HID: reject input outside logical range only if null state is set

Browse source 
This patch fixes an issue in drivers/hid/hid-input.c where USB HID
control null state flag is not checked upon rejecting inputs outside
logical minimum-maximum range. The check should be made according to USB
HID specification 1.11, section 6.2.2.5, p.31. The fix will resolve
issues with some game controllers, such as:
https://bugzilla.kernel.org/show_bug.cgi?id=68621

[[email protected]: shortened and fixed spelling in commit message]
Signed-off-by: Valtteri Heikkilä <[email protected]>
Signed-off-by: Tomasz Kramkowski <[email protected]>
Acked-By: Benjamin Tissoires <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
This commit is contained in:
Valtteri Heikkilä 2017-02-14 23:14:32 +00:00 • committed by Jiri Kosina
commit 3f3752705d
1 changed files with 1 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
drivers/hid/hid-input.c
View file

@ -1157,6 +1157,7 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
* don't specify logical min and max.
*/
if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
(field->flags & HID_MAIN_ITEM_NULL_STATE) &&
(field->logical_minimum < field->logical_maximum) &&
(value < field->logical_minimum ||
value > field->logical_maximum)) {