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authorChristophe Ricard <christophe.ricard@gmail.com>2016-04-30 09:12:44 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2016-05-04 01:36:24 +0200
commit070718a499cea9e6d7e6404788490574dfb71388 (patch)
tree95b9fc8abc06ace6743a73f2bb924766a4c95b01 /drivers/nfc/st21nfca/i2c.c
parent7cb6ab590d7d203b53284f4f211d4a8a89a125fc (diff)
downloadblackbird-op-linux-070718a499cea9e6d7e6404788490574dfb71388.tar.gz
blackbird-op-linux-070718a499cea9e6d7e6404788490574dfb71388.zip
NFC: st21nfca: Drop two useless checks in ACPI probe path
When st21nfca_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: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc/st21nfca/i2c.c')
-rw-r--r--drivers/nfc/st21nfca/i2c.c13
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c
index a3153a30be5d..5a82f553906c 100644
--- a/drivers/nfc/st21nfca/i2c.c
+++ b/drivers/nfc/st21nfca/i2c.c
@@ -507,21 +507,10 @@ static struct nfc_phy_ops i2c_phy_ops = {
static int st21nfca_hci_i2c_acpi_request_resources(struct i2c_client *client)
{
struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client);
- const struct acpi_device_id *id;
struct gpio_desc *gpiod_ena;
- struct device *dev;
+ struct device *dev = &client->dev;
u8 tmp;
- 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;
-
/* Get EN GPIO from ACPI */
gpiod_ena = devm_gpiod_get_index(dev, ST21NFCA_GPIO_NAME_EN, 1,
GPIOD_OUT_LOW);
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