diff options
author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2016-03-03 04:26:18 -0500 |
---|---|---|
committer | Samuel Ortiz <sameo@linux.intel.com> | 2016-03-03 04:34:45 -0500 |
commit | dd215430dc9132fc0505cb4d5aa6dc6243ce8f9c (patch) | |
tree | 0282c85470877919872d5feabe9637fb41065aad /drivers/nfc | |
parent | 03c05355543149bf610f4375e8382ee4fc0aaade (diff) |
NFC: pn544: Drop two useless checks in ACPI probe path
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>
Diffstat (limited to 'drivers/nfc')
-rw-r--r-- | drivers/nfc/pn544/i2c.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c index 76c318444304..45d0e667d7ae 100644 --- a/drivers/nfc/pn544/i2c.c +++ b/drivers/nfc/pn544/i2c.c | |||
@@ -877,20 +877,8 @@ exit_state_wait_secure_write_answer: | |||
877 | static int pn544_hci_i2c_acpi_request_resources(struct i2c_client *client) | 877 | static int pn544_hci_i2c_acpi_request_resources(struct i2c_client *client) |
878 | { | 878 | { |
879 | struct pn544_i2c_phy *phy = i2c_get_clientdata(client); | 879 | struct pn544_i2c_phy *phy = i2c_get_clientdata(client); |
880 | const struct acpi_device_id *id; | ||
881 | struct gpio_desc *gpiod_en, *gpiod_fw; | 880 | struct gpio_desc *gpiod_en, *gpiod_fw; |
882 | struct device *dev; | 881 | struct device *dev = &client->dev; |
883 | |||
884 | if (!client) | ||
885 | return -EINVAL; | ||
886 | |||
887 | dev = &client->dev; | ||
888 | |||
889 | /* Match the struct device against a given list of ACPI IDs */ | ||
890 | id = acpi_match_device(dev->driver->acpi_match_table, dev); | ||
891 | |||
892 | if (!id) | ||
893 | return -ENODEV; | ||
894 | 882 | ||
895 | /* Get EN GPIO from ACPI */ | 883 | /* Get EN GPIO from ACPI */ |
896 | gpiod_en = devm_gpiod_get_index(dev, PN544_GPIO_NAME_EN, 1, | 884 | gpiod_en = devm_gpiod_get_index(dev, PN544_GPIO_NAME_EN, 1, |