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[5/8] platform/x86: fujitsu-laptop: switch to a managed hotkey input device

Message ID 20170320093224.18541-6-kernel@kempniu.pl (mailing list archive)
State Accepted, archived
Delegated to: Darren Hart
Headers show

Commit Message

Michał Kępień March 20, 2017, 9:32 a.m. UTC
Use a managed input device for hotkey events in order to simplify two
error paths and one cleanup function while also reducing the number of
local variables required.  Remove double assignment to make checkpatch
happy.

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
---
 drivers/platform/x86/fujitsu-laptop.c | 55 ++++++++++++-----------------------
 1 file changed, 19 insertions(+), 36 deletions(-)
diff mbox

Patch

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index b1a08d83330b..74da588ed871 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -759,41 +759,29 @@  static void acpi_fujitsu_bl_notify(struct acpi_device *device, u32 event)
 static int acpi_fujitsu_laptop_input_setup(struct acpi_device *device)
 {
 	struct fujitsu_laptop *fujitsu_laptop = acpi_driver_data(device);
-	struct input_dev *input;
-	int error;
 
-	fujitsu_laptop->input = input = input_allocate_device();
-	if (!input)
+	fujitsu_laptop->input = devm_input_allocate_device(&device->dev);
+	if (!fujitsu_laptop->input)
 		return -ENOMEM;
 
 	snprintf(fujitsu_laptop->phys, sizeof(fujitsu_laptop->phys),
 		 "%s/video/input0", acpi_device_hid(device));
 
-	input->name = acpi_device_name(device);
-	input->phys = fujitsu_laptop->phys;
-	input->id.bustype = BUS_HOST;
-	input->id.product = 0x06;
-	input->dev.parent = &device->dev;
-
-	set_bit(EV_KEY, input->evbit);
-	set_bit(fujitsu_bl->keycode1, input->keybit);
-	set_bit(fujitsu_bl->keycode2, input->keybit);
-	set_bit(fujitsu_bl->keycode3, input->keybit);
-	set_bit(fujitsu_bl->keycode4, input->keybit);
-	set_bit(fujitsu_bl->keycode5, input->keybit);
-	set_bit(KEY_TOUCHPAD_TOGGLE, input->keybit);
-	set_bit(KEY_UNKNOWN, input->keybit);
-
-	error = input_register_device(input);
-	if (error)
-		goto err_free_input_dev;
-
-	return 0;
-
-err_free_input_dev:
-	input_free_device(input);
-
-	return error;
+	fujitsu_laptop->input->name = acpi_device_name(device);
+	fujitsu_laptop->input->phys = fujitsu_laptop->phys;
+	fujitsu_laptop->input->id.bustype = BUS_HOST;
+	fujitsu_laptop->input->id.product = 0x06;
+
+	set_bit(EV_KEY, fujitsu_laptop->input->evbit);
+	set_bit(fujitsu_bl->keycode1, fujitsu_laptop->input->keybit);
+	set_bit(fujitsu_bl->keycode2, fujitsu_laptop->input->keybit);
+	set_bit(fujitsu_bl->keycode3, fujitsu_laptop->input->keybit);
+	set_bit(fujitsu_bl->keycode4, fujitsu_laptop->input->keybit);
+	set_bit(fujitsu_bl->keycode5, fujitsu_laptop->input->keybit);
+	set_bit(KEY_TOUCHPAD_TOGGLE, fujitsu_laptop->input->keybit);
+	set_bit(KEY_UNKNOWN, fujitsu_laptop->input->keybit);
+
+	return input_register_device(fujitsu_laptop->input);
 }
 
 static int fujitsu_laptop_platform_add(void)
@@ -862,7 +850,7 @@  static int acpi_fujitsu_laptop_add(struct acpi_device *device)
 	error = acpi_bus_update_power(fujitsu_laptop->acpi_handle, &state);
 	if (error) {
 		pr_err("Error reading power state\n");
-		goto err_unregister_input_dev;
+		goto err_free_fifo;
 	}
 
 	pr_info("ACPI: %s [%s] (%s)\n",
@@ -911,7 +899,7 @@  static int acpi_fujitsu_laptop_add(struct acpi_device *device)
 
 	error = fujitsu_laptop_platform_add();
 	if (error)
-		goto err_unregister_input_dev;
+		goto err_free_fifo;
 
 #if IS_ENABLED(CONFIG_LEDS_CLASS)
 	if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
@@ -974,8 +962,6 @@  static int acpi_fujitsu_laptop_add(struct acpi_device *device)
 
 	return result;
 
-err_unregister_input_dev:
-	input_unregister_device(fujitsu_laptop->input);
 err_free_fifo:
 	kfifo_free(&fujitsu_laptop->fifo);
 err_stop:
@@ -985,7 +971,6 @@  static int acpi_fujitsu_laptop_add(struct acpi_device *device)
 static int acpi_fujitsu_laptop_remove(struct acpi_device *device)
 {
 	struct fujitsu_laptop *fujitsu_laptop = acpi_driver_data(device);
-	struct input_dev *input = fujitsu_laptop->input;
 
 #if IS_ENABLED(CONFIG_LEDS_CLASS)
 	if (fujitsu_laptop->logolamp_registered)
@@ -1003,8 +988,6 @@  static int acpi_fujitsu_laptop_remove(struct acpi_device *device)
 
 	fujitsu_laptop_platform_remove();
 
-	input_unregister_device(input);
-
 	kfifo_free(&fujitsu_laptop->fifo);
 
 	fujitsu_laptop->acpi_handle = NULL;