From eb626c573219233bfd330fef9066e7f9530b078e Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Mon, 27 Mar 2017 16:59:29 +0200 Subject: [PATCH] HID: logitech-hidpp: handle battery events in hidpp_raw_hidpp_event() Battery events are reported through HID++, so we need to be sure the report ID is the HID++ one. Without this, we might receive keyboard events that looks just like battery events with wrong data and which will confuse user space. Signed-off-by: Benjamin Tissoires Tested-by: Bastien Nocera Signed-off-by: Jiri Kosina --- drivers/hid/hid-logitech-hidpp.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 81ebded3c8e8..3e2f716b446d 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -2250,6 +2250,7 @@ static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data, struct hidpp_report *question = hidpp->send_receive_buf; struct hidpp_report *answer = hidpp->send_receive_buf; struct hidpp_report *report = (struct hidpp_report *)data; + int ret; /* * If the mutex is locked then we have a pending answer from a @@ -2283,6 +2284,12 @@ static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data, return 1; } + if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) { + ret = hidpp20_battery_event(hidpp, data, size); + if (ret != 0) + return ret; + } + return 0; } @@ -2325,12 +2332,6 @@ static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report, if (ret != 0) return ret; - if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) { - ret = hidpp20_battery_event(hidpp, data, size); - if (ret != 0) - return ret; - } - if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) return wtp_raw_event(hdev, data, size); else if (hidpp->quirks & HIDPP_QUIRK_CLASS_M560) -- 2.20.1