Kernel 3.19.0 one-line fix for an issue in drivers/hid/hid-input.c where
USB HID control null state flag is not checked when rejecting inputs
outside logical minimum-maximum range. The check should be made as per
USB HID specification 1.11, section 6.2.2.5, p.31. I have no resources
for large-scale testing, but this fixes problems with the game
controller I have (INNEX NES Controller USB).
More details: https://bugzilla.kernel.org/show_bug.cgi?id=68621
Signed-Off-by: Valtteri Heikkilä <r...@nic.fi>
--- a/drivers/hid/hid-input.c 2015-05-25 09:58:49.743527141 +0800
+++ b/drivers/hid/hid-input.c 2015-05-25 11:04:13.201191432 +0800
@@ -1097,6 +1097,7 @@
* 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)) {
--
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