mfd: bcm590xx: Convert to i2c_new_dummy_device

Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an
ERRPTR which we use in error handling.

Signed-off-by: Wolfram Sang <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/bcm590xx.c

···
 	}
 
 	/* Secondary I2C slave address is the base address with A(2) asserted */
-	bcm590xx->i2c_sec = i2c_new_dummy(i2c_pri->adapter,
+	bcm590xx->i2c_sec = i2c_new_dummy_device(i2c_pri->adapter,
 					  i2c_pri->addr | BIT(2));
-	if (!bcm590xx->i2c_sec) {
+	if (IS_ERR(bcm590xx->i2c_sec)) {
 		dev_err(&i2c_pri->dev, "failed to add secondary I2C device\n");
-		return -ENODEV;
+		return PTR_ERR(bcm590xx->i2c_sec);
 	}
 	i2c_set_clientdata(bcm590xx->i2c_sec, bcm590xx);