spi: omap-100k: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/spi/spi-omap-100k.c

@@ -457,7 +457,7 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	status = spi_register_master(master);
+	status = devm_spi_register_master(&pdev->dev, master);
 	if (status < 0)
 		goto err;
 
@@ -485,8 +485,6 @@ static int omap1_spi100k_remove(struct platform_device *pdev)
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	spi_unregister_master(master);
-
 	return 0;
 }