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authorHans de Goede <hdegoede@redhat.com>2021-04-04 10:52:50 +0300
committerJiri Kosina <jkosina@suse.cz>2021-04-07 13:46:32 +0300
commitefb618fba54d7df0414f395b6213a469c075f859 (patch)
tree0ed5f39b452f4a28daf712a1bc8e7e21dbf3aabf
parent69aea9d2843669387d100e353b5113d1adc9502f (diff)
downloadlinux-efb618fba54d7df0414f395b6213a469c075f859.tar.xz
HID: elan: Silence mute LED errors being logged when the device is unplugged
Being integrated into an USB keyboard-dock the mute LED can go away at any time, leading to the following errors: [ 918.667671] elan 0003:04F3:0755.0002: Failed to set mute led brightness: -19 [ 918.667737] leds elan:red:mute: Setting an LED's brightness failed (-19) Fix this by making the following changes: 1. Don't log an error from elan_mute_led_set_brigtness() when ret == -ENODEV 2. Set the LED_HW_PLUGGABLE flag on the mute LED led_classdev While at it also make sure that elan_mute_led_set_brigtness() returns an error (-EIO) when ret != 3 but it is not an error (>= 0). Reviewed-by: Marek BehĂșn <kabel@kernel.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
-rw-r--r--drivers/hid/hid-elan.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index dae193749d44..473d8528319d 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -445,8 +445,9 @@ static int elan_mute_led_set_brigtness(struct led_classdev *led_cdev,
kfree(dmabuf);
if (ret != ELAN_LED_REPORT_SIZE) {
- hid_err(hdev, "Failed to set mute led brightness: %d\n", ret);
- return ret;
+ if (ret != -ENODEV)
+ hid_err(hdev, "Failed to set mute led brightness: %d\n", ret);
+ return ret < 0 ? ret : -EIO;
}
drvdata->mute_led_state = led_state;
@@ -462,6 +463,7 @@ static int elan_init_mute_led(struct hid_device *hdev)
mute_led->brightness_get = elan_mute_led_get_brigtness;
mute_led->brightness_set_blocking = elan_mute_led_set_brigtness;
mute_led->max_brightness = LED_ON;
+ mute_led->flags = LED_HW_PLUGGABLE;
mute_led->dev = &hdev->dev;
return devm_led_classdev_register(&hdev->dev, mute_led);