[PATCH v2 1/2] HID: i2c-hid: acpi: Drop unneded NULL check of adev
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2023-01-16 15:45:56
The driver is enumerated on ACPI platforms, so adev is valid. Since there is no valid I²C ID table provided, there is no possibility to bind a device to this driver via user space. Hence, drop unneeded NULL check of adev. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- v2: no changes drivers/hid/i2c-hid/i2c-hid-acpi.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/hid/i2c-hid/i2c-hid-acpi.c b/drivers/hid/i2c-hid/i2c-hid-acpi.c
index 375c77c3db74..5e28da45e762 100644
--- a/drivers/hid/i2c-hid/i2c-hid-acpi.c
+++ b/drivers/hid/i2c-hid/i2c-hid-acpi.c@@ -48,8 +48,9 @@ static guid_t i2c_hid_guid = GUID_INIT(0x3CDFF6F7, 0x4267, 0x4555, 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE); -static int i2c_hid_acpi_get_descriptor(struct acpi_device *adev) +static int i2c_hid_acpi_get_descriptor(struct i2c_hid_acpi *ihid_acpi) { + struct acpi_device *adev = ihid_acpi->adev; acpi_handle handle = acpi_device_handle(adev); union acpi_object *obj; u16 hid_descriptor_address;
@@ -81,29 +82,22 @@ static int i2c_hid_acpi_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct i2c_hid_acpi *ihid_acpi; - struct acpi_device *adev; u16 hid_descriptor_address; int ret; - adev = ACPI_COMPANION(dev); - if (!adev) { - dev_err(&client->dev, "Error could not get ACPI device\n"); - return -ENODEV; - } - ihid_acpi = devm_kzalloc(&client->dev, sizeof(*ihid_acpi), GFP_KERNEL); if (!ihid_acpi) return -ENOMEM; - ihid_acpi->adev = adev; + ihid_acpi->adev = ACPI_COMPANION(dev); ihid_acpi->ops.shutdown_tail = i2c_hid_acpi_shutdown_tail; - ret = i2c_hid_acpi_get_descriptor(adev); + ret = i2c_hid_acpi_get_descriptor(ihid_acpi); if (ret < 0) return ret; hid_descriptor_address = ret; - acpi_device_fix_up_power(adev); + acpi_device_fix_up_power(ihid_acpi->adev); return i2c_hid_core_probe(client, &ihid_acpi->ops, hid_descriptor_address, 0);
--
2.39.0