Merge tag 'platform-drivers-x86-v3.18-1' of...

Merge tag 'platform-drivers-x86-v3.18-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver updates from Darren Hart:
 "The following have all spent at least a few days in linux-next, most
  for more than a week.  These are mostly cleanups and error handling
  improvements with a few updates to extend existing support to newer
  hardware.

  Details:
   - dell-wmi: fix access out of memory
   - eeepc-laptop: cleanups, refactoring, sysfs perms, and improved
     error handling
   - intel-rst: ACPI and error handling cleanups
   - thinkpad-acpi: whitespace cleanup
   - toshiba_acpi: HCI/SCI interface update, keyboard backlight type 2
     support, new scancodes, cleanups"

* tag 'platform-drivers-x86-v3.18-1' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: (23 commits)
  toshiba_acpi: Adapt kbd_bl_timeout_store to the new kbd type
  toshiba_acpi: Change HCI/SCI functions return code type
  toshiba_acpi: Unify return codes prefix from HCI/SCI to TOS
  toshiba_acpi: Rename hci_raw to tci_raw
  dell-wmi: Fix access out of memory
  eeepc-laptop: clean up control flow in *_rfkill_notifier
  eeepc-laptop: store_cpufv: return error if set_acpi fails
  eeepc-laptop: check proper return values in get_cpufv
  eeepc-laptop: make fan1_input really read-only
  eeepc-laptop: pull out SENSOR_STORE_FUNC and SENSOR_SHOW_FUNC macros
  eeepc-laptop: tell sysfs that the disp attribute is write-only
  eeepc-laptop: pull out ACPI_STORE_FUNC and ACPI_SHOW_FUNC macros
  eeepc-laptop: use DEVICE_ATTR* to instantiate device_attributes
  eeepc-laptop: change sysfs function names to API expectations
  eeepc-laptop: clean up coding style
  eeepc-laptop: simplify parse_arg()
  intel-rst: Clean up ACPI add function
  intel-rst: Use ACPI_FAILURE() macro instead !ACPI_SUCCESS() for error checking
  x86: thinkpad_acpi.c: fixed spacing coding style issue
  toshiba_acpi: Support new keyboard backlight type
  ...

drivers/platform/x86/dell-wmi.c

@@ -163,18 +163,24 @@ static void dell_wmi_notify(u32 value, void *context)
 		const struct key_entry *key;
 		int reported_key;
 		u16 *buffer_entry = (u16 *)obj->buffer.pointer;
+		int buffer_size = obj->buffer.length/2;
 
-		if (dell_new_hk_type && (buffer_entry[1] != 0x10)) {
+		if (buffer_size >= 2 && dell_new_hk_type && buffer_entry[1] != 0x10) {
 			pr_info("Received unknown WMI event (0x%x)\n",
 				buffer_entry[1]);
 			kfree(obj);
 			return;
 		}
 
-		if (dell_new_hk_type || buffer_entry[1] == 0x0)
+		if (buffer_size >= 3 && (dell_new_hk_type || buffer_entry[1] == 0x0))
 			reported_key = (int)buffer_entry[2];
-		else
+		else if (buffer_size >= 2)
 			reported_key = (int)buffer_entry[1] & 0xffff;
+		else {
+			pr_info("Received unknown WMI event\n");
+			kfree(obj);
+			return;
+		}
 
 		key = sparse_keymap_entry_from_scancode(dell_wmi_input_dev,
 							reported_key);

drivers/platform/x86/intel-rst.c

@@ -35,7 +35,7 @@ static ssize_t irst_show_wakeup_events(struct device *dev,
 	acpi = to_acpi_device(dev);
 
 	status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value);
-	if (!ACPI_SUCCESS(status))
+	if (ACPI_FAILURE(status))
 		return -EINVAL;
 
 	return sprintf(buf, "%lld\n", value);
@@ -59,7 +59,7 @@ static ssize_t irst_store_wakeup_events(struct device *dev,
 
 	status = acpi_execute_simple_method(acpi->handle, "SFFS", value);
 
-	if (!ACPI_SUCCESS(status))
+	if (ACPI_FAILURE(status))
 		return -EINVAL;
 
 	return count;
@@ -81,7 +81,7 @@ static ssize_t irst_show_wakeup_time(struct device *dev,
 	acpi = to_acpi_device(dev);
 
 	status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value);
-	if (!ACPI_SUCCESS(status))
+	if (ACPI_FAILURE(status))
 		return -EINVAL;
 
 	return sprintf(buf, "%lld\n", value);
@@ -105,7 +105,7 @@ static ssize_t irst_store_wakeup_time(struct device *dev,
 
 	status = acpi_execute_simple_method(acpi->handle, "SFTV", value);
 
-	if (!ACPI_SUCCESS(status))
+	if (ACPI_FAILURE(status))
 		return -EINVAL;
 
 	return count;
@@ -119,21 +119,16 @@ static struct device_attribute irst_timeout_attr = {
 
 static int irst_add(struct acpi_device *acpi)
 {
-	int error = 0;
+	int error;
 
 	error = device_create_file(&acpi->dev, &irst_timeout_attr);
-	if (error)
-		goto out;
+	if (unlikely(error))
+		return error;
 
 	error = device_create_file(&acpi->dev, &irst_wakeup_attr);
-	if (error)
-		goto out_timeout;
+	if (unlikely(error))
+		device_remove_file(&acpi->dev, &irst_timeout_attr);
 
-	return 0;
-
-out_timeout:
-	device_remove_file(&acpi->dev, &irst_timeout_attr);
-out:
 	return error;
 }
 

drivers/platform/x86/thinkpad_acpi.c

@@ -3440,7 +3440,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 	delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj);
 	hotkey_dev_attributes = NULL;
 
-	return (res < 0)? res : 1;
+	return (res < 0) ? res : 1;
 }
 
 /* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser
@@ -4576,7 +4576,7 @@ static int __init video_init(struct ibm_init_struct *iibm)
 		str_supported(video_supported != TPACPI_VIDEO_NONE),
 		video_supported);
 
-	return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1;
+	return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1;
 }
 
 static void video_exit(void)
@@ -4669,7 +4669,7 @@ static int video_outputsw_set(int status)
 		return -ENOSYS;
 	}
 
-	return (res)? 0 : -EIO;
+	return (res) ? 0 : -EIO;
 }
 
 static int video_autosw_get(void)
@@ -4695,7 +4695,7 @@ static int video_autosw_get(void)
 
 static int video_autosw_set(int enable)
 {
-	if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0))
+	if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0))
 		return -EIO;
 	return 0;
 }
@@ -4730,20 +4730,20 @@ static int video_outputsw_cycle(void)
 		return -EIO;
 	}
 
-	return (res)? 0 : -EIO;
+	return (res) ? 0 : -EIO;
 }
 
 static int video_expand_toggle(void)
 {
 	switch (video_supported) {
 	case TPACPI_VIDEO_570:
-		return acpi_evalf(ec_handle, NULL, "_Q17", "v")?
+		return acpi_evalf(ec_handle, NULL, "_Q17", "v") ?
 			0 : -EIO;
 	case TPACPI_VIDEO_770:
-		return acpi_evalf(vid_handle, NULL, "VEXP", "v")?
+		return acpi_evalf(vid_handle, NULL, "VEXP", "v") ?
 			0 : -EIO;
 	case TPACPI_VIDEO_NEW:
-		return acpi_evalf(NULL, NULL, "\\VEXP", "v")?
+		return acpi_evalf(NULL, NULL, "\\VEXP", "v") ?
 			0 : -EIO;
 	default:
 		return -ENOSYS;
@@ -4887,14 +4887,14 @@ static int light_set_status(int status)
 	if (tp_features.light) {
 		if (cmos_handle) {
 			rc = acpi_evalf(cmos_handle, NULL, NULL, "vd",
-					(status)?
+					(status) ?
 						TP_CMOS_THINKLIGHT_ON :
 						TP_CMOS_THINKLIGHT_OFF);
 		} else {
 			rc = acpi_evalf(lght_handle, NULL, NULL, "vd",
-					(status)? 1 : 0);
+					(status) ? 1 : 0);
 		}
-		return (rc)? 0 : -EIO;
+		return (rc) ? 0 : -EIO;
 	}
 
 	return -ENXIO;
@@ -4923,7 +4923,7 @@ static void light_sysfs_set(struct led_classdev *led_cdev,
 
 static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev)
 {
-	return (light_get_status() == 1)? LED_FULL : LED_OFF;
+	return (light_get_status() == 1) ? LED_FULL : LED_OFF;
 }
 
 static struct tpacpi_led_classdev tpacpi_led_thinklight = {
@@ -5045,7 +5045,7 @@ static ssize_t cmos_command_store(struct device *dev,
 		return -EINVAL;
 
 	res = issue_thinkpad_cmos_command(cmos_cmd);
-	return (res)? res : count;
+	return (res) ? res : count;
 }
 
 static struct device_attribute dev_attr_cmos_command =
@@ -5069,7 +5069,7 @@ static int __init cmos_init(struct ibm_init_struct *iibm)
 	if (res)
 		return res;
 
-	return (cmos_handle)? 0 : 1;
+	return (cmos_handle) ? 0 : 1;
 }
 
 static void cmos_exit(void)
@@ -5179,9 +5179,9 @@ static int led_get_status(const unsigned int led)
 		if (!acpi_evalf(ec_handle,
 				&status, "GLED", "dd", 1 << led))
 			return -EIO;
-		led_s = (status == 0)?
+		led_s = (status == 0) ?
 				TPACPI_LED_OFF :
-				((status == 1)?
+				((status == 1) ?
 					TPACPI_LED_ON :
 					TPACPI_LED_BLINK);
 		tpacpi_led_state_cache[led] = led_s;
@@ -5578,7 +5578,7 @@ static int __init beep_init(struct ibm_init_struct *iibm)
 
 	tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1);
 
-	return (beep_handle)? 0 : 1;
+	return (beep_handle) ? 0 : 1;
 }
 
 static int beep_read(struct seq_file *m)
@@ -6527,7 +6527,7 @@ static int brightness_write(char *buf)
 	if (!rc && ibm_backlight_device)
 		backlight_force_update(ibm_backlight_device,
 					BACKLIGHT_UPDATE_SYSFS);
-	return (rc == -EINTR)? -ERESTARTSYS : rc;
+	return (rc == -EINTR) ? -ERESTARTSYS : rc;
 }
 
 static struct ibm_struct brightness_driver_data = {
@@ -7984,7 +7984,7 @@ static ssize_t fan_pwm1_store(struct device *dev,
 	}
 
 	mutex_unlock(&fan_mutex);
-	return (rc)? rc : count;
+	return (rc) ? rc : count;
 }
 
 static struct device_attribute dev_attr_fan_pwm1 =
@@ -8662,7 +8662,7 @@ static const char * __init str_supported(int is_supported)
 {
 	static char text_unsupported[] __initdata = "not supported";
 
-	return (is_supported)? &text_unsupported[4] : &text_unsupported[0];
+	return (is_supported) ? &text_unsupported[4] : &text_unsupported[0];
 }
 #endif /* CONFIG_THINKPAD_ACPI_DEBUG */
 
@@ -8783,7 +8783,7 @@ static int __init ibm_init(struct ibm_init_struct *iibm)
 		ibm->name, ret);
 
 	ibm_exit(ibm);
-	return (ret < 0)? ret : 0;
+	return (ret < 0) ? ret : 0;
 }
 
 /* Probing */
@@ -8794,7 +8794,7 @@ static bool __pure __init tpacpi_is_fw_digit(const char c)
 }
 
 /* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */
-static bool __pure __init tpacpi_is_valid_fw_id(const char* const s,
+static bool __pure __init tpacpi_is_valid_fw_id(const char * const s,
 						const char t)
 {
 	return s && strlen(s) >= 8 &&