[PATCH 2/2] spi: atcspi200: switch to devm functions

[Felix Gu]

Switch to use devm_spi_alloc_host and devm_mutex_init to make code clean.

Signed-off-by: Felix Gu <ustc.gu@xxxxxxxxx>
---
 drivers/spi/spi-atcspi200.c | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/spi/spi-atcspi200.c b/drivers/spi/spi-atcspi200.c
index c5cf1aa2d674..6d4b6aeb3f5b 100644
--- a/drivers/spi/spi-atcspi200.c
+++ b/drivers/spi/spi-atcspi200.c
@@ -550,7 +550,7 @@ static int atcspi_probe(struct platform_device *pdev)
 	struct resource *mem_res;
 	int ret;
 
-	host = spi_alloc_host(&pdev->dev, sizeof(*spi));
+	host = devm_spi_alloc_host(&pdev->dev, sizeof(*spi));
 	if (!host)
 		return -ENOMEM;
 
@@ -559,21 +559,23 @@ static int atcspi_probe(struct platform_device *pdev)
 	spi->dev = &pdev->dev;
 	dev_set_drvdata(&pdev->dev, host);
 
-	mutex_init(&spi->mutex_lock);
+	ret = devm_mutex_init(&pdev->dev, &spi->mutex_lock);
+	if (ret)
+		return ret;
 
 	ret = atcspi_init_resources(pdev, spi, &mem_res);
 	if (ret)
-		goto free_controller;
+		return ret;
 
 	ret = atcspi_enable_clk(spi);
 	if (ret)
-		goto free_controller;
+		return ret;
 
 	atcspi_init_controller(pdev, spi, host, mem_res);
 
 	ret = atcspi_setup(spi);
 	if (ret)
-		goto free_controller;
+		return ret;
 
 	spi->use_dma = false;
 	if (ATCSPI_DMA_SUPPORT) {
@@ -586,18 +588,11 @@ static int atcspi_probe(struct platform_device *pdev)
 	}
 
 	ret = devm_spi_register_controller(&pdev->dev, host);
-	if (ret) {
-		dev_err_probe(spi->dev, ret,
-			      "Failed to register SPI controller\n");
-		goto free_controller;
-	}
+	if (ret)
+		return dev_err_probe(spi->dev, ret,
+				     "Failed to register SPI controller\n");
 
 	return 0;
-
-free_controller:
-	mutex_destroy(&spi->mutex_lock);
-	spi_controller_put(host);
-	return ret;
 }
 
 static int atcspi_suspend(struct device *dev)

-- 
2.43.0