From: Jiri Kosina <[email protected]>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
commit 8e7b341037db1835ee6eea64663013cbfcf33575 upstream.
The ignore check that got added in 6ce901eb61 ("HID: input: fix confusion
on conflicting mappings") needs to properly check for VARIABLE reports
as well (ARRAY reports should be ignored), otherwise legitimate keyboards
might break.
Fixes: 6ce901eb61 ("HID: input: fix confusion on conflicting mappings")
Reported-by: Fredrik Hallenberg <[email protected]>
Reported-by: David Herrmann <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Signed-off-by: Jiri Slaby <[email protected]>
---
drivers/hid/hid-input.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index a70e999209d9..9dcccbde65fb 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1081,6 +1081,7 @@ void hidinput_hid_event(struct hid_device *hid, struct
hid_field *field, struct
*/
if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
HID_MAIN_ITEM_BUFFERED_BYTE)) &&
+ (field->flags & HID_MAIN_ITEM_VARIABLE) &&
usage->usage_index < field->maxusage &&
value == field->value[usage->usage_index])
return;
--
2.3.0
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