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

Pull input fixes from Dmitry Torokhov:
 "Fixes to various USB drivers to validate existence of endpoints before
  trying to use them, fixes to APLS v8 protocol, and a couple of i8042
  quirks"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: ALPS - fix trackstick button handling on V8 devices
  Input: ALPS - fix V8+ protocol handling (73 03 28)
  Input: sur40 - validate number of endpoints before using them
  Input: kbtab - validate number of endpoints before using them
  Input: hanwang - validate number of endpoints before using them
  Input: yealink - validate number of endpoints before using them
  Input: ims-pcu - validate number of endpoints before using them
  Input: cm109 - validate number of endpoints before using them
  Input: iforce - validate number of endpoints before using them
  Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
  Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list
  Input: synaptics-rmi4 - prevent null pointer dereference in f30
  Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000

12 files changed, 116 insertions, 29 deletions

diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
index d96aa27dfcdc..db64adfbe1af 100644
--- a/drivers/input/joystick/iforce/iforce-usb.c
+++ b/drivers/input/joystick/iforce/iforce-usb.c
@@ -141,6 +141,9 @@ static int iforce_usb_probe(struct usb_interface *intf,
 
 	interface = intf->cur_altsetting;
 
+	if (interface->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
 	epirq = &interface->endpoint[0].desc;
 	epout = &interface->endpoint[1].desc;
 
diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c
index 9cc6d057c302..23c191a2a071 100644
--- a/drivers/input/misc/cm109.c
+++ b/drivers/input/misc/cm109.c
@@ -700,6 +700,10 @@ static int cm109_usb_probe(struct usb_interface *intf,
 	int error = -ENOMEM;
 
 	interface = intf->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &interface->endpoint[0].desc;
 
 	if (!usb_endpoint_is_int_in(endpoint))
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index 9c0ea36913b4..f4e8fbec6a94 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -1667,6 +1667,10 @@ static int ims_pcu_parse_cdc_data(struct usb_interface *intf, struct ims_pcu *pc
 		return -EINVAL;
 
 	alt = pcu->ctrl_intf->cur_altsetting;
+
+	if (alt->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	pcu->ep_ctrl = &alt->endpoint[0].desc;
 	pcu->max_ctrl_size = usb_endpoint_maxp(pcu->ep_ctrl);
 
diff --git a/drivers/input/misc/yealink.c b/drivers/input/misc/yealink.c
index 79c964c075f1..6e7ff9561d92 100644
--- a/drivers/input/misc/yealink.c
+++ b/drivers/input/misc/yealink.c
@@ -875,6 +875,10 @@ static int usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	int ret, pipe, i;
 
 	interface = intf->cur_altsetting;
+
+	if (interface->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	endpoint = &interface->endpoint[0].desc;
 	if (!usb_endpoint_is_int_in(endpoint))
 		return -ENODEV;
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 72b28ebfe360..f210e19ddba6 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -1282,10 +1282,8 @@ static int alps_decode_ss4_v2(struct alps_fields *f,
 	/* handle buttons */
 	if (pkt_id == SS4_PACKET_ID_STICK) {
 		f->ts_left = !!(SS4_BTN_V2(p) & 0x01);
-		if (!(priv->flags & ALPS_BUTTONPAD)) {
-			f->ts_right = !!(SS4_BTN_V2(p) & 0x02);
-			f->ts_middle = !!(SS4_BTN_V2(p) & 0x04);
-		}
+		f->ts_right = !!(SS4_BTN_V2(p) & 0x02);
+		f->ts_middle = !!(SS4_BTN_V2(p) & 0x04);
 	} else {
 		f->left = !!(SS4_BTN_V2(p) & 0x01);
 		if (!(priv->flags & ALPS_BUTTONPAD)) {
@@ -2462,14 +2460,34 @@ static int alps_update_device_area_ss4_v2(unsigned char otp[][4],
 	int num_y_electrode;
 	int x_pitch, y_pitch, x_phys, y_phys;
 
-	num_x_electrode = SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
-	num_y_electrode = SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
+	if (IS_SS4PLUS_DEV(priv->dev_id)) {
+		num_x_electrode =
+			SS4PLUS_NUMSENSOR_XOFFSET + (otp[0][2] & 0x0F);
+		num_y_electrode =
+			SS4PLUS_NUMSENSOR_YOFFSET + ((otp[0][2] >> 4) & 0x0F);
+
+		priv->x_max =
+			(num_x_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
+		priv->y_max =
+			(num_y_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
 
-	priv->x_max = (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
-	priv->y_max = (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+		x_pitch = (otp[0][1] & 0x0F) + SS4PLUS_MIN_PITCH_MM;
+		y_pitch = ((otp[0][1] >> 4) & 0x0F) + SS4PLUS_MIN_PITCH_MM;
 
-	x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
-	y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
+	} else {
+		num_x_electrode =
+			SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
+		num_y_electrode =
+			SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
+
+		priv->x_max =
+			(num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+		priv->y_max =
+			(num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+
+		x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
+		y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
+	}
 
 	x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */
 	y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */
@@ -2485,7 +2503,10 @@ static int alps_update_btn_info_ss4_v2(unsigned char otp[][4],
 {
 	unsigned char is_btnless;
 
-	is_btnless = (otp[1][1] >> 3) & 0x01;
+	if (IS_SS4PLUS_DEV(priv->dev_id))
+		is_btnless = (otp[1][0] >> 1) & 0x01;
+	else
+		is_btnless = (otp[1][1] >> 3) & 0x01;
 
 	if (is_btnless)
 		priv->flags |= ALPS_BUTTONPAD;
@@ -2493,6 +2514,21 @@ static int alps_update_btn_info_ss4_v2(unsigned char otp[][4],
 	return 0;
 }
 
+static int alps_update_dual_info_ss4_v2(unsigned char otp[][4],
+				       struct alps_data *priv)
+{
+	bool is_dual = false;
+
+	if (IS_SS4PLUS_DEV(priv->dev_id))
+		is_dual = (otp[0][0] >> 4) & 0x01;
+
+	if (is_dual)
+		priv->flags |= ALPS_DUALPOINT |
+					ALPS_DUALPOINT_WITH_PRESSURE;
+
+	return 0;
+}
+
 static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
 				    struct alps_data *priv)
 {
@@ -2508,6 +2544,8 @@ static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
 
 	alps_update_btn_info_ss4_v2(otp, priv);
 
+	alps_update_dual_info_ss4_v2(otp, priv);
+
 	return 0;
 }
 
@@ -2753,10 +2791,6 @@ static int alps_set_protocol(struct psmouse *psmouse,
 		if (alps_set_defaults_ss4_v2(psmouse, priv))
 			return -EIO;
 
-		if (priv->fw_ver[1] == 0x1)
-			priv->flags |= ALPS_DUALPOINT |
-					ALPS_DUALPOINT_WITH_PRESSURE;
-
 		break;
 	}
 
@@ -2827,10 +2861,7 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
 			   ec[2] >= 0x90 && ec[2] <= 0x9d) {
 			protocol = &alps_v3_protocol_data;
 		} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
-			   e7[2] == 0x14 && ec[1] == 0x02) {
-			protocol = &alps_v8_protocol_data;
-		} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
-			   e7[2] == 0x28 && ec[1] == 0x01) {
+			   (e7[2] == 0x14 || e7[2] == 0x28)) {
 			protocol = &alps_v8_protocol_data;
 		} else {
 			psmouse_dbg(psmouse,
@@ -2840,7 +2871,8 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
 	}
 
 	if (priv) {
-		/* Save the Firmware version */
+		/* Save Device ID and Firmware version */
+		memcpy(priv->dev_id, e7, 3);
 		memcpy(priv->fw_ver, ec, 3);
 		error = alps_set_protocol(psmouse, priv, protocol);
 		if (error)
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index 6d279aa27cb9..4334f2805d93 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -54,6 +54,16 @@ enum SS4_PACKET_ID {
 
 #define SS4_MASK_NORMAL_BUTTONS		0x07
 
+#define SS4PLUS_COUNT_PER_ELECTRODE	128
+#define SS4PLUS_NUMSENSOR_XOFFSET	16
+#define SS4PLUS_NUMSENSOR_YOFFSET	5
+#define SS4PLUS_MIN_PITCH_MM		37
+
+#define IS_SS4PLUS_DEV(_b)	(((_b[0]) == 0x73) &&	\
+				 ((_b[1]) == 0x03) &&	\
+				 ((_b[2]) == 0x28)		\
+				)
+
 #define SS4_IS_IDLE_V2(_b)	(((_b[0]) == 0x18) &&		\
 				 ((_b[1]) == 0x10) &&		\
 				 ((_b[2]) == 0x00) &&		\
@@ -283,6 +293,7 @@ struct alps_data {
 	int addr_command;
 	u16 proto_version;
 	u8 byte0, mask0;
+	u8 dev_id[3];
 	u8 fw_ver[3];
 	int flags;
 	int x_max;
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 352050e9031d..d5ab9ddef3e3 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -218,17 +218,19 @@ static int elan_query_product(struct elan_tp_data *data)
 
 static int elan_check_ASUS_special_fw(struct elan_tp_data *data)
 {
-	if (data->ic_type != 0x0E)
-		return false;
-
-	switch (data->product_id) {
-	case 0x05 ... 0x07:
-	case 0x09:
-	case 0x13:
+	if (data->ic_type == 0x0E) {
+		switch (data->product_id) {
+		case 0x05 ... 0x07:
+		case 0x09:
+		case 0x13:
+			return true;
+		}
+	} else if (data->ic_type == 0x08 && data->product_id == 0x26) {
+		/* ASUS EeeBook X205TA */
 		return true;
-	default:
-		return false;
 	}
+
+	return false;
 }
 
 static int __elan_initialize(struct elan_tp_data *data)
diff --git a/drivers/input/rmi4/rmi_f30.c b/drivers/input/rmi4/rmi_f30.c
index 198678613382..34dfee555b20 100644
--- a/drivers/input/rmi4/rmi_f30.c
+++ b/drivers/input/rmi4/rmi_f30.c
@@ -170,6 +170,10 @@ static int rmi_f30_config(struct rmi_function *fn)
 				rmi_get_platform_data(fn->rmi_dev);
 	int error;
 
+	/* can happen if f30_data.disable is set */
+	if (!f30)
+		return 0;
+
 	if (pdata->f30_data.trackstick_buttons) {
 		/* Try [re-]establish link to F03. */
 		f30->f03 = rmi_find_function(fn->rmi_dev, 0x03);
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 05afd16ea9c9..312bd6ca9198 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -120,6 +120,13 @@ static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = {
 		},
 	},
 	{
+		/* Dell Embedded Box PC 3000 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Embedded Box PC 3000"),
+		},
+	},
+	{
 		/* OQO Model 01 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
@@ -513,6 +520,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
 		},
 	},
+	{
+		/* TUXEDO BU1406 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
+		},
+	},
 	{ }
 };
 
diff --git a/drivers/input/tablet/hanwang.c b/drivers/input/tablet/hanwang.c
index cd852059b99e..df4bea96d7ed 100644
--- a/drivers/input/tablet/hanwang.c
+++ b/drivers/input/tablet/hanwang.c
@@ -340,6 +340,9 @@ static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id
 	int error;
 	int i;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!hanwang || !input_dev) {
diff --git a/drivers/input/tablet/kbtab.c b/drivers/input/tablet/kbtab.c
index e850d7e8afbc..4d9d64908b59 100644
--- a/drivers/input/tablet/kbtab.c
+++ b/drivers/input/tablet/kbtab.c
@@ -122,6 +122,9 @@ static int kbtab_probe(struct usb_interface *intf, const struct usb_device_id *i
 	struct input_dev *input_dev;
 	int error = -ENOMEM;
 
+	if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+		return -ENODEV;
+
 	kbtab = kzalloc(sizeof(struct kbtab), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!kbtab || !input_dev)
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
index aefb6e11f88a..4c0eecae065c 100644
--- a/drivers/input/touchscreen/sur40.c
+++ b/drivers/input/touchscreen/sur40.c
@@ -527,6 +527,9 @@ static int sur40_probe(struct usb_interface *interface,
 	if (iface_desc->desc.bInterfaceClass != 0xFF)
 		return -ENODEV;
 
+	if (iface_desc->desc.bNumEndpoints < 5)
+		return -ENODEV;
+
 	/* Use endpoint #4 (0x86). */
 	endpoint = &iface_desc->endpoint[4].desc;
 	if (endpoint->bEndpointAddress != TOUCH_ENDPOINT)