[PATCH v1 02/10] platform/x86: classmate-laptop: Unify probe rollback and remove code

From: Rafael J. Wysocki

Date: Thu May 07 2026 - 16:19:31 EST


From: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx>

To facilitate subsequent modifications, change code ordering in
cmpc_accel_add_v4(), cmpc_accel_add(), and cmpc_accel_remove_v4()
so that the ordering of the probe rollback code is the same as the
ordering of the corresponding removal code.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/platform/x86/classmate-laptop.c | 36 +++++++++++++------------
1 file changed, 19 insertions(+), 17 deletions(-)

diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c
index 218834ddddc3..bc5df682d194 100644
--- a/drivers/platform/x86/classmate-laptop.c
+++ b/drivers/platform/x86/classmate-laptop.c
@@ -406,6 +406,13 @@ static int cmpc_accel_add_v4(struct acpi_device *acpi)

accel->inputdev_state = CMPC_ACCEL_DEV_STATE_CLOSED;

+ error = cmpc_add_acpi_notify_device(acpi, "cmpc_accel_v4",
+ cmpc_accel_idev_init_v4);
+ if (error)
+ goto failed_input;
+
+ inputdev = dev_get_drvdata(&acpi->dev);
+
accel->sensitivity = CMPC_ACCEL_SENSITIVITY_DEFAULT;
cmpc_accel_set_sensitivity_v4(acpi->handle, accel->sensitivity);

@@ -420,21 +427,15 @@ static int cmpc_accel_add_v4(struct acpi_device *acpi)
if (error)
goto failed_g_select;

- error = cmpc_add_acpi_notify_device(acpi, "cmpc_accel_v4",
- cmpc_accel_idev_init_v4);
- if (error)
- goto failed_input;
-
- inputdev = dev_get_drvdata(&acpi->dev);
dev_set_drvdata(&inputdev->dev, accel);

return 0;

-failed_input:
- device_remove_file(&acpi->dev, &cmpc_accel_g_select_attr_v4);
failed_g_select:
device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr_v4);
failed_sensitivity:
+ cmpc_remove_acpi_notify_device(acpi);
+failed_input:
kfree(accel);
return error;
}
@@ -444,8 +445,8 @@ static void cmpc_accel_remove_v4(struct acpi_device *acpi)
struct input_dev *inputdev = dev_get_drvdata(&acpi->dev);
struct cmpc_accel *accel = dev_get_drvdata(&inputdev->dev);

- device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr_v4);
device_remove_file(&acpi->dev, &cmpc_accel_g_select_attr_v4);
+ device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr_v4);
cmpc_remove_acpi_notify_device(acpi);
kfree(accel);
}
@@ -658,6 +659,13 @@ static int cmpc_accel_add(struct acpi_device *acpi)
if (!accel)
return -ENOMEM;

+ error = cmpc_add_acpi_notify_device(acpi, "cmpc_accel",
+ cmpc_accel_idev_init);
+ if (error)
+ goto failed_input;
+
+ inputdev = dev_get_drvdata(&acpi->dev);
+
accel->sensitivity = CMPC_ACCEL_SENSITIVITY_DEFAULT;
cmpc_accel_set_sensitivity(acpi->handle, accel->sensitivity);

@@ -665,19 +673,13 @@ static int cmpc_accel_add(struct acpi_device *acpi)
if (error)
goto failed_file;

- error = cmpc_add_acpi_notify_device(acpi, "cmpc_accel",
- cmpc_accel_idev_init);
- if (error)
- goto failed_input;
-
- inputdev = dev_get_drvdata(&acpi->dev);
dev_set_drvdata(&inputdev->dev, accel);

return 0;

-failed_input:
- device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr);
failed_file:
+ cmpc_remove_acpi_notify_device(acpi);
+failed_input:
kfree(accel);
return error;
}