diff options
| author | Aditya Pakki <pakki001@umn.edu> | 2018-12-24 15:39:14 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:46:09 +0100 |
| commit | 0c15d464c84891fec9363041c4431b26c510caf9 (patch) | |
| tree | 900fad2dcfa047e0bb8edbf48513989545018338 /drivers/hid/hid-lenovo.c | |
| parent | 919fc06bf18b4e26d8d68f249f968b36c2e45dea (diff) | |
HID: lenovo: Add checks to fix of_led_classdev_register
[ Upstream commit 6ae16dfb61bce538d48b7fe98160fada446056c5 ]
In lenovo_probe_tpkbd(), the function of_led_classdev_register() could
return an error value that is unchecked. The fix adds these checks.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/hid/hid-lenovo.c')
| -rw-r--r-- | drivers/hid/hid-lenovo.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/hid/hid-lenovo.c b/drivers/hid/hid-lenovo.c index 643b6eb54442..eacc76d2ab96 100644 --- a/drivers/hid/hid-lenovo.c +++ b/drivers/hid/hid-lenovo.c @@ -743,7 +743,9 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev) data_pointer->led_mute.brightness_get = lenovo_led_brightness_get_tpkbd; data_pointer->led_mute.brightness_set = lenovo_led_brightness_set_tpkbd; data_pointer->led_mute.dev = dev; - led_classdev_register(dev, &data_pointer->led_mute); + ret = led_classdev_register(dev, &data_pointer->led_mute); + if (ret < 0) + goto err; data_pointer->led_micmute.name = name_micmute; data_pointer->led_micmute.brightness_get = @@ -751,7 +753,11 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev) data_pointer->led_micmute.brightness_set = lenovo_led_brightness_set_tpkbd; data_pointer->led_micmute.dev = dev; - led_classdev_register(dev, &data_pointer->led_micmute); + ret = led_classdev_register(dev, &data_pointer->led_micmute); + if (ret < 0) { + led_classdev_unregister(&data_pointer->led_mute); + goto err; + } lenovo_features_set_tpkbd(hdev); |