HID: lenovo: Don't call function in condition, show error codes

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-lenovo.c

@@ -350,6 +350,7 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev)
 	size_t name_sz = strlen(dev_name(dev)) + 16;
 	char *name_mute, *name_micmute;
 	int i;
+	int ret;
 
 	/*
 	 * Only register extra settings against subdevice where input_mapping
@@ -368,10 +369,9 @@ static int lenovo_probe_tpkbd(struct hid_device *hdev)
 	if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2))
 		return -ENODEV;
 
-	if (sysfs_create_group(&hdev->dev.kobj,
-				&lenovo_attr_group_tpkbd)) {
-		hid_warn(hdev, "Could not create sysfs group\n");
-	}
+	ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd);
+	if (ret)
+		hid_warn(hdev, "Could not create sysfs group: %d\n", ret);
 
 	data_pointer = devm_kzalloc(&hdev->dev,
 				    sizeof(struct lenovo_drvdata_tpkbd),