From: Christophe Ricard Date: Wed, 23 Mar 2016 07:55:33 +0000 (+0100) Subject: tpm/st33zp24/spi: Drop two useless checks in ACPI probe path X-Git-Tag: v4.8-rc1~95^2~76 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=20ab99f89d574ba3c3944a6682bec5a6e0c0dcd9;p=linux.git tpm/st33zp24/spi: Drop two useless checks in ACPI probe path When st33zp24_spi_acpi_request_resources() gets called we already know that the entries in ->acpi_match_table have matched ACPI ID of the device. In addition spi_device 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 Reviewed-by: Jarkko Sakkinen Signed-off-by: Jarkko Sakkinen --- diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c index 6be51ac0c1f1..608dbc620b18 100644 --- a/drivers/char/tpm/st33zp24/spi.c +++ b/drivers/char/tpm/st33zp24/spi.c @@ -232,19 +232,8 @@ static const struct st33zp24_phy_ops spi_phy_ops = { static int st33zp24_spi_acpi_request_resources(struct spi_device *spi_dev) { struct st33zp24_spi_phy *phy = spi_get_drvdata(spi_dev); - const struct acpi_device_id *id; struct gpio_desc *gpiod_lpcpd; - struct device *dev; - - if (!spi_dev) - return -EINVAL; - - dev = &spi_dev->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 = &spi_dev->dev; /* Get LPCPD GPIO from ACPI */ gpiod_lpcpd = devm_gpiod_get_index(dev, "TPM IO LPCPD", 1,