Merge branch 'i2c/make_remove_callback_void-immutable' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into next

Sync up with the latest I2C code base to get updated prototype of I2C
bus remove() method.

32 files changed, 58 insertions, 144 deletions

diff --git a/drivers/input/joystick/as5011.c b/drivers/input/joystick/as5011.c
index 34bcd99a46f5..2beda29021a3 100644
--- a/drivers/input/joystick/as5011.c
+++ b/drivers/input/joystick/as5011.c
@@ -327,7 +327,7 @@ err_free_mem:
 	return error;
 }
 
-static int as5011_remove(struct i2c_client *client)
+static void as5011_remove(struct i2c_client *client)
 {
 	struct as5011_device *as5011 = i2c_get_clientdata(client);
 
@@ -337,8 +337,6 @@ static int as5011_remove(struct i2c_client *client)
 
 	input_unregister_device(as5011->input_dev);
 	kfree(as5011);
-
-	return 0;
 }
 
 static const struct i2c_device_id as5011_id[] = {
diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
index 1a1a05d7cd42..e2719737360a 100644
--- a/drivers/input/keyboard/adp5588-keys.c
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -592,12 +592,11 @@ static int adp5588_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int adp5588_remove(struct i2c_client *client)
+static void adp5588_remove(struct i2c_client *client)
 {
 	adp5588_write(client, CFG, 0);
 
 	/* all resources will be freed by devm */
-	return 0;
 }
 
 static int __maybe_unused adp5588_suspend(struct device *dev)
diff --git a/drivers/input/keyboard/applespi.c b/drivers/input/keyboard/applespi.c
index fcf4b55cdf90..fab5473ae5da 100644
--- a/drivers/input/keyboard/applespi.c
+++ b/drivers/input/keyboard/applespi.c
@@ -1597,52 +1597,38 @@ static u32 applespi_notify(acpi_handle gpe_device, u32 gpe, void *context)
 
 static int applespi_get_saved_bl_level(struct applespi_data *applespi)
 {
-	struct efivar_entry *efivar_entry;
+	efi_status_t sts = EFI_NOT_FOUND;
 	u16 efi_data = 0;
-	unsigned long efi_data_len;
-	int sts;
-
-	efivar_entry = kmalloc(sizeof(*efivar_entry), GFP_KERNEL);
-	if (!efivar_entry)
-		return -ENOMEM;
-
-	memcpy(efivar_entry->var.VariableName, EFI_BL_LEVEL_NAME,
-	       sizeof(EFI_BL_LEVEL_NAME));
-	efivar_entry->var.VendorGuid = EFI_BL_LEVEL_GUID;
-	efi_data_len = sizeof(efi_data);
+	unsigned long efi_data_len = sizeof(efi_data);
 
-	sts = efivar_entry_get(efivar_entry, NULL, &efi_data_len, &efi_data);
-	if (sts && sts != -ENOENT)
+	if (efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE))
+		sts = efi.get_variable(EFI_BL_LEVEL_NAME, &EFI_BL_LEVEL_GUID,
+				       NULL, &efi_data_len, &efi_data);
+	if (sts != EFI_SUCCESS && sts != EFI_NOT_FOUND)
 		dev_warn(&applespi->spi->dev,
-			 "Error getting backlight level from EFI vars: %d\n",
+			 "Error getting backlight level from EFI vars: 0x%lx\n",
 			 sts);
 
-	kfree(efivar_entry);
-
-	return sts ? sts : efi_data;
+	return sts != EFI_SUCCESS ? -ENODEV : efi_data;
 }
 
 static void applespi_save_bl_level(struct applespi_data *applespi,
 				   unsigned int level)
 {
-	efi_guid_t efi_guid;
+	efi_status_t sts = EFI_UNSUPPORTED;
 	u32 efi_attr;
-	unsigned long efi_data_len;
 	u16 efi_data;
-	int sts;
 
-	/* Save keyboard backlight level */
-	efi_guid = EFI_BL_LEVEL_GUID;
 	efi_data = (u16)level;
-	efi_data_len = sizeof(efi_data);
 	efi_attr = EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS |
 		   EFI_VARIABLE_RUNTIME_ACCESS;
 
-	sts = efivar_entry_set_safe((efi_char16_t *)EFI_BL_LEVEL_NAME, efi_guid,
-				    efi_attr, true, efi_data_len, &efi_data);
-	if (sts)
+	if (efi_rt_services_supported(EFI_RT_SUPPORTED_SET_VARIABLE))
+		sts = efi.set_variable(EFI_BL_LEVEL_NAME, &EFI_BL_LEVEL_GUID,
+				       efi_attr, sizeof(efi_data), &efi_data);
+	if (sts != EFI_SUCCESS)
 		dev_warn(&applespi->spi->dev,
-			 "Error saving backlight level to EFI vars: %d\n", sts);
+			 "Error saving backlight level to EFI vars: 0x%lx\n", sts);
 }
 
 static int applespi_probe(struct spi_device *spi)
diff --git a/drivers/input/keyboard/bcm-keypad.c b/drivers/input/keyboard/bcm-keypad.c
index 166d6023a538..56a919ec23b5 100644
--- a/drivers/input/keyboard/bcm-keypad.c
+++ b/drivers/input/keyboard/bcm-keypad.c
@@ -1,15 +1,5 @@
-/*
- * Copyright (C) 2014 Broadcom Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2014 Broadcom Corporation
 
 #include <linux/bitops.h>
 #include <linux/clk.h>
diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index 6c38d034ec6e..407dd2ad6302 100644
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -752,7 +752,7 @@ fail1:
 	return err;
 }
 
-static int lm8323_remove(struct i2c_client *client)
+static void lm8323_remove(struct i2c_client *client)
 {
 	struct lm8323_chip *lm = i2c_get_clientdata(client);
 	int i;
@@ -769,8 +769,6 @@ static int lm8323_remove(struct i2c_client *client)
 			led_classdev_unregister(&lm->pwm[i].cdev);
 
 	kfree(lm);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/input/keyboard/lm8333.c b/drivers/input/keyboard/lm8333.c
index 7c5f8c6bb957..9dac22c14125 100644
--- a/drivers/input/keyboard/lm8333.c
+++ b/drivers/input/keyboard/lm8333.c
@@ -200,15 +200,13 @@ static int lm8333_probe(struct i2c_client *client,
 	return err;
 }
 
-static int lm8333_remove(struct i2c_client *client)
+static void lm8333_remove(struct i2c_client *client)
 {
 	struct lm8333 *lm8333 = i2c_get_clientdata(client);
 
 	free_irq(client->irq, lm8333);
 	input_unregister_device(lm8333->input);
 	kfree(lm8333);
-
-	return 0;
 }
 
 static const struct i2c_device_id lm8333_id[] = {
diff --git a/drivers/input/keyboard/mcs_touchkey.c b/drivers/input/keyboard/mcs_touchkey.c
index 8cb0062b98e4..ac1637a3389e 100644
--- a/drivers/input/keyboard/mcs_touchkey.c
+++ b/drivers/input/keyboard/mcs_touchkey.c
@@ -194,7 +194,7 @@ err_free_mem:
 	return error;
 }
 
-static int mcs_touchkey_remove(struct i2c_client *client)
+static void mcs_touchkey_remove(struct i2c_client *client)
 {
 	struct mcs_touchkey_data *data = i2c_get_clientdata(client);
 
@@ -203,8 +203,6 @@ static int mcs_touchkey_remove(struct i2c_client *client)
 		data->poweron(false);
 	input_unregister_device(data->input_dev);
 	kfree(data);
-
-	return 0;
 }
 
 static void mcs_touchkey_shutdown(struct i2c_client *client)
diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c
index 7174e1df1ee3..9fcce18b1d65 100644
--- a/drivers/input/keyboard/qt1070.c
+++ b/drivers/input/keyboard/qt1070.c
@@ -216,7 +216,7 @@ err_free_mem:
 	return err;
 }
 
-static int qt1070_remove(struct i2c_client *client)
+static void qt1070_remove(struct i2c_client *client)
 {
 	struct qt1070_data *data = i2c_get_clientdata(client);
 
@@ -225,8 +225,6 @@ static int qt1070_remove(struct i2c_client *client)
 
 	input_unregister_device(data->input);
 	kfree(data);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/input/keyboard/qt2160.c b/drivers/input/keyboard/qt2160.c
index 32d4a076eaa3..382b1519218c 100644
--- a/drivers/input/keyboard/qt2160.c
+++ b/drivers/input/keyboard/qt2160.c
@@ -432,7 +432,7 @@ err_free_mem:
 	return error;
 }
 
-static int qt2160_remove(struct i2c_client *client)
+static void qt2160_remove(struct i2c_client *client)
 {
 	struct qt2160_data *qt2160 = i2c_get_clientdata(client);
 
@@ -446,8 +446,6 @@ static int qt2160_remove(struct i2c_client *client)
 
 	input_unregister_device(qt2160->input);
 	kfree(qt2160);
-
-	return 0;
 }
 
 static const struct i2c_device_id qt2160_idtable[] = {
diff --git a/drivers/input/keyboard/tca6416-keypad.c b/drivers/input/keyboard/tca6416-keypad.c
index 2a9755910065..afcdfbb002ff 100644
--- a/drivers/input/keyboard/tca6416-keypad.c
+++ b/drivers/input/keyboard/tca6416-keypad.c
@@ -307,7 +307,7 @@ fail1:
 	return error;
 }
 
-static int tca6416_keypad_remove(struct i2c_client *client)
+static void tca6416_keypad_remove(struct i2c_client *client)
 {
 	struct tca6416_keypad_chip *chip = i2c_get_clientdata(client);
 
@@ -318,8 +318,6 @@ static int tca6416_keypad_remove(struct i2c_client *client)
 
 	input_unregister_device(chip->input);
 	kfree(chip);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/input/misc/adxl34x-i2c.c b/drivers/input/misc/adxl34x-i2c.c
index a3b5f88d2bd1..5be636aaa94f 100644
--- a/drivers/input/misc/adxl34x-i2c.c
+++ b/drivers/input/misc/adxl34x-i2c.c
@@ -99,13 +99,11 @@ static int adxl34x_i2c_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int adxl34x_i2c_remove(struct i2c_client *client)
+static void adxl34x_i2c_remove(struct i2c_client *client)
 {
 	struct adxl34x *ac = i2c_get_clientdata(client);
 
 	adxl34x_remove(ac);
-
-	return 0;
 }
 
 static int __maybe_unused adxl34x_i2c_suspend(struct device *dev)
diff --git a/drivers/input/misc/bma150.c b/drivers/input/misc/bma150.c
index a9d984da95f3..84fe394da7a6 100644
--- a/drivers/input/misc/bma150.c
+++ b/drivers/input/misc/bma150.c
@@ -513,11 +513,9 @@ static int bma150_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int bma150_remove(struct i2c_client *client)
+static void bma150_remove(struct i2c_client *client)
 {
 	pm_runtime_disable(&client->dev);
-
-	return 0;
 }
 
 static int __maybe_unused bma150_suspend(struct device *dev)
diff --git a/drivers/input/misc/cma3000_d0x_i2c.c b/drivers/input/misc/cma3000_d0x_i2c.c
index 03fb49127c3a..3b23210c46b7 100644
--- a/drivers/input/misc/cma3000_d0x_i2c.c
+++ b/drivers/input/misc/cma3000_d0x_i2c.c
@@ -58,13 +58,11 @@ static int cma3000_i2c_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int cma3000_i2c_remove(struct i2c_client *client)
+static void cma3000_i2c_remove(struct i2c_client *client)
 {
 	struct cma3000_accl_data *data = i2c_get_clientdata(client);
 
 	cma3000_exit(data);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/input/misc/gpio_decoder.c b/drivers/input/misc/gpio_decoder.c
index 145826a1a9a1..ee668eba302f 100644
--- a/drivers/input/misc/gpio_decoder.c
+++ b/drivers/input/misc/gpio_decoder.c
@@ -1,15 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  * A generic driver to read multiple gpio lines and translate the
  * encoded numeric value into an input event.
  */
diff --git a/drivers/input/misc/palmas-pwrbutton.c b/drivers/input/misc/palmas-pwrbutton.c
index 2213e06b611d..465e6693077a 100644
--- a/drivers/input/misc/palmas-pwrbutton.c
+++ b/drivers/input/misc/palmas-pwrbutton.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Texas Instruments' Palmas Power Button Input Driver
  *
  * Copyright (C) 2012-2014 Texas Instruments Incorporated - http://www.ti.com/
  *	Girish S Ghongdemath
  *	Nishanth Menon
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/bitfield.h>
diff --git a/drivers/input/misc/pcf8574_keypad.c b/drivers/input/misc/pcf8574_keypad.c
index abc423165522..cfd6640e4f82 100644
--- a/drivers/input/misc/pcf8574_keypad.c
+++ b/drivers/input/misc/pcf8574_keypad.c
@@ -157,7 +157,7 @@ static int pcf8574_kp_probe(struct i2c_client *client, const struct i2c_device_i
 	return ret;
 }
 
-static int pcf8574_kp_remove(struct i2c_client *client)
+static void pcf8574_kp_remove(struct i2c_client *client)
 {
 	struct kp_data *lp = i2c_get_clientdata(client);
 
@@ -165,8 +165,6 @@ static int pcf8574_kp_remove(struct i2c_client *client)
 
 	input_unregister_device(lp->idev);
 	kfree(lp);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/input/misc/tps65218-pwrbutton.c b/drivers/input/misc/tps65218-pwrbutton.c
index f011447c44fb..fc450fce0932 100644
--- a/drivers/input/misc/tps65218-pwrbutton.c
+++ b/drivers/input/misc/tps65218-pwrbutton.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Texas Instruments' TPS65217 and TPS65218 Power Button Input Driver
  *
  * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
  * Author: Felipe Balbi <balbi@ti.com>
  * Author: Marcin Niestroj <m.niestroj@grinn-global.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/init.h>
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index fa304648d611..987ee67a1045 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -587,7 +587,7 @@ err_mem_free:
 	return ret;
 }
 
-static int synaptics_i2c_remove(struct i2c_client *client)
+static void synaptics_i2c_remove(struct i2c_client *client)
 {
 	struct synaptics_i2c *touch = i2c_get_clientdata(client);
 
@@ -596,8 +596,6 @@ static int synaptics_i2c_remove(struct i2c_client *client)
 
 	input_unregister_device(touch->input);
 	kfree(touch);
-
-	return 0;
 }
 
 static int __maybe_unused synaptics_i2c_suspend(struct device *dev)
diff --git a/drivers/input/rmi4/rmi_smbus.c b/drivers/input/rmi4/rmi_smbus.c
index 2407ea43de59..c130468541b7 100644
--- a/drivers/input/rmi4/rmi_smbus.c
+++ b/drivers/input/rmi4/rmi_smbus.c
@@ -338,13 +338,11 @@ static int rmi_smb_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int rmi_smb_remove(struct i2c_client *client)
+static void rmi_smb_remove(struct i2c_client *client)
 {
 	struct rmi_smb_xport *rmi_smb = i2c_get_clientdata(client);
 
 	rmi_unregister_transport_device(&rmi_smb->xport);
-
-	return 0;
 }
 
 static int __maybe_unused rmi_smb_suspend(struct device *dev)
diff --git a/drivers/input/serio/gscps2.c b/drivers/input/serio/gscps2.c
index a9065c6ab550..da2c67cb8642 100644
--- a/drivers/input/serio/gscps2.c
+++ b/drivers/input/serio/gscps2.c
@@ -350,6 +350,10 @@ static int __init gscps2_probe(struct parisc_device *dev)
 	ps2port->port = serio;
 	ps2port->padev = dev;
 	ps2port->addr = ioremap(hpa, GSC_STATUS + 4);
+	if (!ps2port->addr) {
+		ret = -ENOMEM;
+		goto fail_nomem;
+	}
 	spin_lock_init(&ps2port->lock);
 
 	gscps2_reset(ps2port);
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
index eb66cd2689b7..4eedea08b0b5 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c
@@ -3284,7 +3284,7 @@ err_disable_regulators:
 	return error;
 }
 
-static int mxt_remove(struct i2c_client *client)
+static void mxt_remove(struct i2c_client *client)
 {
 	struct mxt_data *data = i2c_get_clientdata(client);
 
@@ -3294,8 +3294,6 @@ static int mxt_remove(struct i2c_client *client)
 	mxt_free_object_table(data);
 	regulator_bulk_disable(ARRAY_SIZE(data->regulators),
 			       data->regulators);
-
-	return 0;
 }
 
 static int __maybe_unused mxt_suspend(struct device *dev)
diff --git a/drivers/input/touchscreen/bcm_iproc_tsc.c b/drivers/input/touchscreen/bcm_iproc_tsc.c
index 7de1fd24ce36..35e2fe9911a4 100644
--- a/drivers/input/touchscreen/bcm_iproc_tsc.c
+++ b/drivers/input/touchscreen/bcm_iproc_tsc.c
@@ -1,14 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
 * Copyright (C) 2015 Broadcom Corporation
 *
-* This program is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License as
-* published by the Free Software Foundation version 2.
-*
-* This program is distributed "as is" WITHOUT ANY WARRANTY of any
-* kind, whether express or implied; without even the implied warranty
-* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
 */
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c
index 2f1f0d7607f8..34f422e246ef 100644
--- a/drivers/input/touchscreen/bu21013_ts.c
+++ b/drivers/input/touchscreen/bu21013_ts.c
@@ -552,15 +552,13 @@ static int bu21013_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int bu21013_remove(struct i2c_client *client)
+static void bu21013_remove(struct i2c_client *client)
 {
 	struct bu21013_ts *ts = i2c_get_clientdata(client);
 
 	/* Make sure IRQ will exit quickly even if there is contact */
 	ts->touch_stopped = true;
 	/* The resources will be freed by devm */
-
-	return 0;
 }
 
 static int __maybe_unused bu21013_suspend(struct device *dev)
diff --git a/drivers/input/touchscreen/cyttsp4_i2c.c b/drivers/input/touchscreen/cyttsp4_i2c.c
index c65ccb2f4716..28ae7c15397a 100644
--- a/drivers/input/touchscreen/cyttsp4_i2c.c
+++ b/drivers/input/touchscreen/cyttsp4_i2c.c
@@ -43,13 +43,11 @@ static int cyttsp4_i2c_probe(struct i2c_client *client,
 	return PTR_ERR_OR_ZERO(ts);
 }
 
-static int cyttsp4_i2c_remove(struct i2c_client *client)
+static void cyttsp4_i2c_remove(struct i2c_client *client)
 {
 	struct cyttsp4 *ts = i2c_get_clientdata(client);
 
 	cyttsp4_remove(ts);
-
-	return 0;
 }
 
 static const struct i2c_device_id cyttsp4_i2c_id[] = {
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index 82beddb28761..5fb441387fe5 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -1346,13 +1346,11 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int edt_ft5x06_ts_remove(struct i2c_client *client)
+static void edt_ft5x06_ts_remove(struct i2c_client *client)
 {
 	struct edt_ft5x06_ts_data *tsdata = i2c_get_clientdata(client);
 
 	edt_ft5x06_ts_teardown_debugfs(tsdata);
-
-	return 0;
 }
 
 static int __maybe_unused edt_ft5x06_ts_suspend(struct device *dev)
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index cc52f0d21dbb..943a0decb211 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -894,6 +894,11 @@ static int goodix_add_acpi_gpio_mappings(struct goodix_ts_data *ts)
 	} else {
 		dev_warn(dev, "Unexpected ACPI resources: gpio_count %d, gpio_int_idx %d\n",
 			 ts->gpio_count, ts->gpio_int_idx);
+		/*
+		 * On some devices _PS0 does a reset for us and
+		 * sometimes this is necessary for things to work.
+		 */
+		acpi_device_fix_up_power(ACPI_COMPANION(dev));
 		return -EINVAL;
 	}
 
@@ -1377,14 +1382,12 @@ reset:
 	return 0;
 }
 
-static int goodix_ts_remove(struct i2c_client *client)
+static void goodix_ts_remove(struct i2c_client *client)
 {
 	struct goodix_ts_data *ts = i2c_get_clientdata(client);
 
 	if (ts->load_cfg_from_disk)
 		wait_for_completion(&ts->firmware_loading_complete);
-
-	return 0;
 }
 
 static int __maybe_unused goodix_suspend(struct device *dev)
diff --git a/drivers/input/touchscreen/migor_ts.c b/drivers/input/touchscreen/migor_ts.c
index 42d3fd7e04d7..79cd660d879e 100644
--- a/drivers/input/touchscreen/migor_ts.c
+++ b/drivers/input/touchscreen/migor_ts.c
@@ -176,7 +176,7 @@ static int migor_ts_probe(struct i2c_client *client,
 	return error;
 }
 
-static int migor_ts_remove(struct i2c_client *client)
+static void migor_ts_remove(struct i2c_client *client)
 {
 	struct migor_ts_priv *priv = i2c_get_clientdata(client);
 
@@ -185,8 +185,6 @@ static int migor_ts_remove(struct i2c_client *client)
 	kfree(priv);
 
 	dev_set_drvdata(&client->dev, NULL);
-
-	return 0;
 }
 
 static int __maybe_unused migor_ts_suspend(struct device *dev)
diff --git a/drivers/input/touchscreen/s6sy761.c b/drivers/input/touchscreen/s6sy761.c
index 85a1f465c097..1a7d00289b4c 100644
--- a/drivers/input/touchscreen/s6sy761.c
+++ b/drivers/input/touchscreen/s6sy761.c
@@ -475,11 +475,9 @@ static int s6sy761_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int s6sy761_remove(struct i2c_client *client)
+static void s6sy761_remove(struct i2c_client *client)
 {
 	pm_runtime_disable(&client->dev);
-
-	return 0;
 }
 
 static int __maybe_unused s6sy761_runtime_suspend(struct device *dev)
diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c
index c175d44c52f3..d5bd170808fb 100644
--- a/drivers/input/touchscreen/stmfts.c
+++ b/drivers/input/touchscreen/stmfts.c
@@ -738,11 +738,9 @@ static int stmfts_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int stmfts_remove(struct i2c_client *client)
+static void stmfts_remove(struct i2c_client *client)
 {
 	pm_runtime_disable(&client->dev);
-
-	return 0;
 }
 
 static int __maybe_unused stmfts_runtime_suspend(struct device *dev)
diff --git a/drivers/input/touchscreen/tsc2004.c b/drivers/input/touchscreen/tsc2004.c
index 9fdd870c4c0b..a9565353ee98 100644
--- a/drivers/input/touchscreen/tsc2004.c
+++ b/drivers/input/touchscreen/tsc2004.c
@@ -43,11 +43,9 @@ static int tsc2004_probe(struct i2c_client *i2c,
 			     tsc2004_cmd);
 }
 
-static int tsc2004_remove(struct i2c_client *i2c)
+static void tsc2004_remove(struct i2c_client *i2c)
 {
 	tsc200x_remove(&i2c->dev);
-
-	return 0;
 }
 
 static const struct i2c_device_id tsc2004_idtable[] = {
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 43c521f50c85..3dda6eaabdab 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -1654,6 +1654,9 @@ static int usbtouch_probe(struct usb_interface *intf,
 	if (id->driver_info == DEVTYPE_IGNORE)
 		return -ENODEV;
 
+	if (id->driver_info >= ARRAY_SIZE(usbtouch_dev_info))
+		return -ENODEV;
+
 	endpoint = usbtouch_get_input_endpoint(intf->cur_altsetting);
 	if (!endpoint)
 		return -ENXIO;
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index 2757c7768ffe..f51ab5614532 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -758,7 +758,9 @@ batt_err:
 
 static int wm97xx_mfd_remove(struct platform_device *pdev)
 {
-	return wm97xx_remove(&pdev->dev);
+	wm97xx_remove(&pdev->dev);
+
+	return 0;
 }
 
 static int __maybe_unused wm97xx_suspend(struct device *dev)