Commit 20ab99f8 authored Mar 23, 2016 by Christophe Ricard Committed by Jarkko Sakkinen Jun 25, 2016

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 <christophe-h.ricard@st.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

parent 32da5633

drivers/char/tpm/st33zp24/spi.c

+1 −12

Original line number	Diff line number	Diff line
		@@ -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,