spi: pl022: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index c13d523..5e30110 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2225,7 +2225,7 @@
 
 	/* Register with the SPI framework */
 	amba_set_drvdata(adev, pl022);
-	status = spi_register_master(master);
+	status = devm_spi_register_master(&adev->dev, master);
 	if (status != 0) {
 		dev_err(&adev->dev,
 			"probe - problem registering spi master\n");
@@ -2285,7 +2285,6 @@
 	clk_unprepare(pl022->clk);
 	amba_release_regions(adev);
 	tasklet_disable(&pl022->pump_transfers);
-	spi_unregister_master(pl022->master);
 	return 0;
 }