iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

NFC: pn544: Drop two useless checks in ACPI probe path

Browse Source 
When pn544_hci_i2c_acpi_request_resources() gets called we
already know that the entries in ->acpi_match_table have
matched ACPI ID of the device.
In addition I2C client pointer cannot be NULL in any case
(otherwise I2C core would not call ->probe() for the driver
in the first place).

Drop the two useless checks from the driver.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mika Westerberg 2016-03-03 11:26:18 +02:00 committed by Samuel Ortiz
parent 03c0535554
commit dd215430dc
1 changed files with 1 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/nfc/pn544/i2c.c
View File

@ -877,20 +877,8 @@ exit_state_wait_secure_write_answer:
static int pn544_hci_i2c_acpi_request_resources(struct i2c_client *client)
{
struct pn544_i2c_phy *phy = i2c_get_clientdata(client);
const struct acpi_device_id *id;
struct gpio_desc *gpiod_en, *gpiod_fw;
struct device *dev;
if (!client)
return -EINVAL;
dev = &client->dev;
/* Match the struct device against a given list of ACPI IDs */
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
struct device *dev = &client->dev;
/* Get EN GPIO from ACPI */
gpiod_en = devm_gpiod_get_index(dev, PN544_GPIO_NAME_EN, 1,