Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID subsystem fixes from Jiri Kosina:

- syzkaller-reported error handling fixes in various drivers, from
various people

- increase of HID report buffer size to 8K, which is apparently needed
by certain modern devices

- a few new device-ID-specific fixes / quirks

- battery charging status reporting fix in logitech-hidpp, from Filipe
Laíns

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: hid-bigbenff: fix race condition for scheduled work during removal
HID: hid-bigbenff: call hid_hw_stop() in case of error
HID: hid-bigbenff: fix general protection fault caused by double kfree
HID: i2c-hid: add Trekstor Surfbook E11B to descriptor override
HID: alps: Fix an error handling path in 'alps_input_configured()'
HID: hiddev: Fix race in in hiddev_disconnect()
HID: core: increase HID report buffer size to 8KiB
HID: core: fix off-by-one memset in hid_report_raw_event()
HID: apple: Add support for recent firmware on Magic Keyboards
HID: ite: Only bind to keyboard USB interface on Acer SW5-012 keyboard dock
HID: logitech-hidpp: BatteryVoltage: only read chargeStatus if extPower is active

drivers/hid/hid-alps.c

···
 	if (data->has_sp) {
 		input2 = input_allocate_device();
 		if (!input2) {
-			input_free_device(input2);
+			ret = -ENOMEM;
 			goto exit;
 		}
 

drivers/hid/hid-apple.c

···
 		unsigned long **bit, int *max)
 {
 	if (usage->hid == (HID_UP_CUSTOM | 0x0003) ||
-			usage->hid == (HID_UP_MSVENDOR | 0x0003)) {
+			usage->hid == (HID_UP_MSVENDOR | 0x0003) ||
+			usage->hid == (HID_UP_HPVENDOR2 | 0x0003)) {
 		/* The fn key on Apple USB keyboards */
 		set_bit(EV_REP, hi->input->evbit);
 		hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_FN);

drivers/hid/hid-bigbenff.c

···
 struct bigben_device {
 	struct hid_device *hid;
 	struct hid_report *report;
+	bool removed;
 	u8 led_state;         /* LED1 = 1 .. LED4 = 8 */
 	u8 right_motor_on;    /* right motor off/on 0/1 */
 	u8 left_motor_force;  /* left motor force 0-255 */
···
 	struct bigben_device *bigben = container_of(work,
 		struct bigben_device, worker);
 	struct hid_field *report_field = bigben->report->field[0];
+
+	if (bigben->removed)
+		return;
 
 	if (bigben->work_led) {
 		bigben->work_led = false;
···
 static int hid_bigben_play_effect(struct input_dev *dev, void *data,
 			 struct ff_effect *effect)
 {
-	struct bigben_device *bigben = data;
+	struct hid_device *hid = input_get_drvdata(dev);
+	struct bigben_device *bigben = hid_get_drvdata(hid);
 	u8 right_motor_on;
 	u8 left_motor_force;
+
+	if (!bigben) {
+		hid_err(hid, "no device data\n");
+		return 0;
+	}
 
 	if (effect->type != FF_RUMBLE)
 		return 0;
···
 {
 	struct bigben_device *bigben = hid_get_drvdata(hid);
 
+	bigben->removed = true;
 	cancel_work_sync(&bigben->worker);
-	hid_hw_close(hid);
 	hid_hw_stop(hid);
 }
 
···
 		return -ENOMEM;
 	hid_set_drvdata(hid, bigben);
 	bigben->hid = hid;
+	bigben->removed = false;
 
 	error = hid_parse(hid);
 	if (error) {
···
 
 	INIT_WORK(&bigben->worker, bigben_worker);
 
-	error = input_ff_create_memless(hidinput->input, bigben,
+	error = input_ff_create_memless(hidinput->input, NULL,
 		hid_bigben_play_effect);
 	if (error)
-		return error;
+		goto error_hw_stop;
 
 	name_sz = strlen(dev_name(&hid->dev)) + strlen(":red:bigben#") + 1;
 
···
 			sizeof(struct led_classdev) + name_sz,
 			GFP_KERNEL
 		);
-		if (!led)
-			return -ENOMEM;
+		if (!led) {
+			error = -ENOMEM;
+			goto error_hw_stop;
+		}
 		name = (void *)(&led[1]);
 		snprintf(name, name_sz,
 			"%s:red:bigben%d",
···
 		bigben->leds[n] = led;
 		error = devm_led_classdev_register(&hid->dev, led);
 		if (error)
-			return error;
+			goto error_hw_stop;
 	}
 
 	/* initial state: LED1 is on, no rumble effect */
···
 	hid_info(hid, "LED and force feedback support for BigBen gamepad\n");
 
 	return 0;
+
+error_hw_stop:
+	hid_hw_stop(hid);
+	return error;
 }
 
 static __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,

drivers/hid/hid-core.c

···
 
 	rsize = ((report->size - 1) >> 3) + 1;
 
-	if (rsize > HID_MAX_BUFFER_SIZE)
+	if (report_enum->numbered && rsize >= HID_MAX_BUFFER_SIZE)
+		rsize = HID_MAX_BUFFER_SIZE - 1;
+	else if (rsize > HID_MAX_BUFFER_SIZE)
 		rsize = HID_MAX_BUFFER_SIZE;
 
 	if (csize < rsize) {

drivers/hid/hid-ite.c

···
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_258A, USB_DEVICE_ID_258A_6A88) },
 	/* ITE8595 USB kbd ctlr, with Synaptics touchpad connected to it. */
-	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS,
-			 USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012) },
+	{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+		     USB_VENDOR_ID_SYNAPTICS,
+		     USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, ite_devices);

drivers/hid/hid-logitech-hidpp.c

···
 {
 	int status;
 
-	long charge_sts = (long)data[2];
+	long flags = (long) data[2];
 
-	*level = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
-	switch (data[2] & 0xe0) {
-	case 0x00:
-		status = POWER_SUPPLY_STATUS_CHARGING;
-		break;
-	case 0x20:
-		status = POWER_SUPPLY_STATUS_FULL;
-		*level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
-		break;
-	case 0x40:
+	if (flags & 0x80)
+		switch (flags & 0x07) {
+		case 0:
+			status = POWER_SUPPLY_STATUS_CHARGING;
+			break;
+		case 1:
+			status = POWER_SUPPLY_STATUS_FULL;
+			*level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
+			break;
+		case 2:
+			status = POWER_SUPPLY_STATUS_NOT_CHARGING;
+			break;
+		default:
+			status = POWER_SUPPLY_STATUS_UNKNOWN;
+			break;
+		}
+	else
 		status = POWER_SUPPLY_STATUS_DISCHARGING;
-		break;
-	case 0xe0:
-		status = POWER_SUPPLY_STATUS_NOT_CHARGING;
-		break;
-	default:
-		status = POWER_SUPPLY_STATUS_UNKNOWN;
-	}
 
 	*charge_type = POWER_SUPPLY_CHARGE_TYPE_STANDARD;
-	if (test_bit(3, &charge_sts)) {
+	if (test_bit(3, &flags)) {
 		*charge_type = POWER_SUPPLY_CHARGE_TYPE_FAST;
 	}
-	if (test_bit(4, &charge_sts)) {
+	if (test_bit(4, &flags)) {
 		*charge_type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
 	}
-
-	if (test_bit(5, &charge_sts)) {
+	if (test_bit(5, &flags)) {
 		*level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
 	}
 

drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c

···
 		.driver_data = (void *)&sipodev_desc
 	},
 	{
+		.ident = "Trekstor SURFBOOK E11B",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "TREKSTOR"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SURFBOOK E11B"),
+		},
+		.driver_data = (void *)&sipodev_desc
+	},
+	{
 		.ident = "Direkt-Tek DTLAPY116-2",
 		.matches = {
 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Direkt-Tek"),

drivers/hid/usbhid/hiddev.c

···
 	hiddev->exist = 0;
 
 	if (hiddev->open) {
-		mutex_unlock(&hiddev->existancelock);
 		hid_hw_close(hiddev->hid);
 		wake_up_interruptible(&hiddev->wait);
+		mutex_unlock(&hiddev->existancelock);
 	} else {
 		mutex_unlock(&hiddev->existancelock);
 		kfree(hiddev);

include/linux/hid.h

···
 };
 
 #define HID_MIN_BUFFER_SIZE	64		/* make sure there is at least a packet size of space */
-#define HID_MAX_BUFFER_SIZE	4096		/* 4kb */
+#define HID_MAX_BUFFER_SIZE	8192		/* 8kb */
 #define HID_CONTROL_FIFO_SIZE	256		/* to init devices with >100 reports */
 #define HID_OUTPUT_FIFO_SIZE	64