5 files changed, 32 insertions, 13 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index c908c5f83645..9ddafc30f432 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -669,6 +669,9 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
 
 		if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCGABS(0))) {
 
+			if (!dev->absinfo)
+				return -EINVAL;
+
 			t = _IOC_NR(cmd) & ABS_MAX;
 			abs = dev->absinfo[t];
 
@@ -680,10 +683,13 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
 		}
 	}
 
-	if (_IOC_DIR(cmd) == _IOC_READ) {
+	if (_IOC_DIR(cmd) == _IOC_WRITE) {
 
 		if ((_IOC_NR(cmd) & ~ABS_MAX) == _IOC_NR(EVIOCSABS(0))) {
 
+			if (!dev->absinfo)
+				return -EINVAL;
+
 			t = _IOC_NR(cmd) & ABS_MAX;
 
 			if (copy_from_user(&abs, p, min_t(size_t,
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index d85bd8a7967d..22239e988498 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -483,6 +483,9 @@ static int joydev_handle_JSIOCSAXMAP(struct joydev *joydev,
 
 	memcpy(joydev->abspam, abspam, len);
 
+	for (i = 0; i < joydev->nabs; i++)
+		joydev->absmap[joydev->abspam[i]] = i;
+
  out:
 	kfree(abspam);
 	return retval;
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 0d4266a533a5..360698553eb5 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -404,6 +404,13 @@ static int uinput_setup_device(struct uinput_device *udev, const char __user *bu
 		retval = uinput_validate_absbits(dev);
 		if (retval < 0)
 			goto exit;
+		if (test_bit(ABS_MT_SLOT, dev->absbit)) {
+			int nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
+			input_mt_create_slots(dev, nslot);
+			input_set_events_per_packet(dev, 6 * nslot);
+		} else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+			input_set_events_per_packet(dev, 60);
+		}
 	}
 
 	udev->state = UIST_SETUP_COMPLETE;
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 42ba3691d908..b35876ee6908 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -103,27 +103,26 @@ static void wacom_sys_irq(struct urb *urb)
 static int wacom_open(struct input_dev *dev)
 {
 	struct wacom *wacom = input_get_drvdata(dev);
+	int retval = 0;
 
-	mutex_lock(&wacom->lock);
-
-	wacom->irq->dev = wacom->usbdev;
-
-	if (usb_autopm_get_interface(wacom->intf) < 0) {
-		mutex_unlock(&wacom->lock);
+	if (usb_autopm_get_interface(wacom->intf) < 0)
 		return -EIO;
-	}
+
+	mutex_lock(&wacom->lock);
 
 	if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
-		usb_autopm_put_interface(wacom->intf);
-		mutex_unlock(&wacom->lock);
-		return -EIO;
+		retval = -EIO;
+		goto out;
 	}
 
 	wacom->open = true;
 	wacom->intf->needs_remote_wakeup = 1;
 
+out:
 	mutex_unlock(&wacom->lock);
-	return 0;
+	if (retval)
+		usb_autopm_put_interface(wacom->intf);
+	return retval;
 }
 
 static void wacom_close(struct input_dev *dev)
@@ -135,6 +134,8 @@ static void wacom_close(struct input_dev *dev)
 	wacom->open = false;
 	wacom->intf->needs_remote_wakeup = 0;
 	mutex_unlock(&wacom->lock);
+
+	usb_autopm_put_interface(wacom->intf);
 }
 
 static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc,
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 6e29badb969e..47fd7a041c52 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -442,8 +442,10 @@ static void wacom_intuos_general(struct wacom_wac *wacom)
 	/* general pen packet */
 	if ((data[1] & 0xb8) == 0xa0) {
 		t = (data[6] << 2) | ((data[7] >> 6) & 3);
-		if (features->type >= INTUOS4S && features->type <= INTUOS4L)
+		if ((features->type >= INTUOS4S && features->type <= INTUOS4L) ||
+		    features->type == WACOM_21UX2) {
 			t = (t << 1) | (data[1] & 1);
+		}
 		input_report_abs(input, ABS_PRESSURE, t);
 		input_report_abs(input, ABS_TILT_X,
 				((data[7] << 1) & 0x7e) | (data[8] >> 7));