blob: 4e919e47e9a75b338b699dfeb3b74d1f1444c7af [file] [log] [blame]
From 7a5317211675cb9866a4ed6f217d77840ca0000c Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 14 Nov 2019 15:30:46 +0100
Subject: [PATCH] HID: logitech-hidpp: Silence intermittent
get_battery_capacity errors
commit 61005d65b6c7dcf61c19516e6ebe5acc02d2cdda upstream.
My Logitech M185 (PID:4038) 2.4 GHz wireless HID++ mouse is causing
intermittent errors like these in the log:
[11091.034857] logitech-hidpp-device 0003:046D:4038.0006: hidpp20_batterylevel_get_battery_capacity: received protocol error 0x09
[12388.031260] logitech-hidpp-device 0003:046D:4038.0006: hidpp20_batterylevel_get_battery_capacity: received protocol error 0x09
[16613.718543] logitech-hidpp-device 0003:046D:4038.0006: hidpp20_batterylevel_get_battery_capacity: received protocol error 0x09
[23529.938728] logitech-hidpp-device 0003:046D:4038.0006: hidpp20_batterylevel_get_battery_capacity: received protocol error 0x09
We are already silencing error-code 0x09 (HIDPP_ERROR_RESOURCE_ERROR)
errors in other places, lets do the same in
hidpp20_batterylevel_get_battery_capacity to remove these harmless,
but scary looking errors from the dmesg output.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 0faef11c29f6..f97913974983 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -1102,6 +1102,9 @@ static int hidpp20_batterylevel_get_battery_capacity(struct hidpp_device *hidpp,
ret = hidpp_send_fap_command_sync(hidpp, feature_index,
CMD_BATTERY_LEVEL_STATUS_GET_BATTERY_LEVEL_STATUS,
NULL, 0, &response);
+ /* Ignore these intermittent errors */
+ if (ret == HIDPP_ERROR_RESOURCE_ERROR)
+ return -EIO;
if (ret > 0) {
hid_err(hidpp->hid_dev, "%s: received protocol error 0x%02x\n",
__func__, ret);
--
2.7.4