[PATCH] spi: acpi: remove superfluous parameter check

[Wolfram Sang <wsa@xxxxxxxxxxxxx>]

From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>

to_spi_device() already checks 'dev'. No need to do it before calling
it.

Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
---

Found while fiddling with bus_find_device_by_acpi_dev() in the I2C
subsystem.

 drivers/spi/spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 755221bc3745..75978b6c5834 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -4034,7 +4034,7 @@ static struct spi_device *acpi_spi_find_device_by_adev(struct acpi_device *adev)
 	struct device *dev;
 
 	dev = bus_find_device_by_acpi_dev(&spi_bus_type, adev);
-	return dev ? to_spi_device(dev) : NULL;
+	return to_spi_device(dev);
 }
 
 static int acpi_spi_notify(struct notifier_block *nb, unsigned long value,
-- 
2.20.1