[PATCH 2/2] spi: coldfire-qspi: Use devm_*() functions

[Jingoo Han]

Use devm_*() functions to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1....@samsung.com>
---
 drivers/spi/spi-coldfire-qspi.c |   47 ++++++++++++---------------------------
 1 file changed, 14 insertions(+), 33 deletions(-)

diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c
index cc5b75d..9ee81a4 100644
--- a/drivers/spi/spi-coldfire-qspi.c
+++ b/drivers/spi/spi-coldfire-qspi.c
@@ -403,38 +403,31 @@ static int mcfqspi_probe(struct platform_device *pdev)
                goto fail0;
        }
 
-       if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
-               dev_dbg(&pdev->dev, "request_mem_region failed\n");
-               status = -EBUSY;
+       mcfqspi->iobase = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(mcfqspi->iobase)) {
+               status = PTR_ERR(mcfqspi->iobase);
                goto fail0;
        }
 
-       mcfqspi->iobase = ioremap(res->start, resource_size(res));
-       if (!mcfqspi->iobase) {
-               dev_dbg(&pdev->dev, "ioremap failed\n");
-               status = -ENOMEM;
-               goto fail1;
-       }
-
        mcfqspi->irq = platform_get_irq(pdev, 0);
        if (mcfqspi->irq < 0) {
                dev_dbg(&pdev->dev, "platform_get_irq failed\n");
                status = -ENXIO;
-               goto fail2;
+               goto fail0;
        }
 
-       status = request_irq(mcfqspi->irq, mcfqspi_irq_handler, 0,
-                            pdev->name, mcfqspi);
+       status = devm_request_irq(&pdev->dev, mcfqspi->irq, mcfqspi_irq_handler,
+                               0, pdev->name, mcfqspi);
        if (status) {
                dev_dbg(&pdev->dev, "request_irq failed\n");
-               goto fail2;
+               goto fail0;
        }
 
-       mcfqspi->clk = clk_get(&pdev->dev, "qspi_clk");
+       mcfqspi->clk = devm_clk_get(&pdev->dev, "qspi_clk");
        if (IS_ERR(mcfqspi->clk)) {
                dev_dbg(&pdev->dev, "clk_get failed\n");
                status = PTR_ERR(mcfqspi->clk);
-               goto fail3;
+               goto fail0;
        }
        clk_enable(mcfqspi->clk);
 
@@ -445,7 +438,7 @@ static int mcfqspi_probe(struct platform_device *pdev)
        status = mcfqspi_cs_setup(mcfqspi);
        if (status) {
                dev_dbg(&pdev->dev, "error initializing cs_control\n");
-               goto fail4;
+               goto fail1;
        }
 
        init_waitqueue_head(&mcfqspi->waitq);
@@ -459,10 +452,10 @@ static int mcfqspi_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, master);
 
-       status = spi_register_master(master);
+       status = devm_spi_register_master(&pdev->dev, master);
        if (status) {
                dev_dbg(&pdev->dev, "spi_register_master failed\n");
-               goto fail5;
+               goto fail2;
        }
        pm_runtime_enable(mcfqspi->dev);
 
@@ -470,17 +463,10 @@ static int mcfqspi_probe(struct platform_device *pdev)
 
        return 0;
 
-fail5:
-       mcfqspi_cs_teardown(mcfqspi);
-fail4:
-       clk_disable(mcfqspi->clk);
-       clk_put(mcfqspi->clk);
-fail3:
-       free_irq(mcfqspi->irq, mcfqspi);
 fail2:
-       iounmap(mcfqspi->iobase);
+       mcfqspi_cs_teardown(mcfqspi);
 fail1:
-       release_mem_region(res->start, resource_size(res));
+       clk_disable(mcfqspi->clk);
 fail0:
        spi_master_put(master);
 
@@ -501,11 +487,6 @@ static int mcfqspi_remove(struct platform_device *pdev)
 
        mcfqspi_cs_teardown(mcfqspi);
        clk_disable(mcfqspi->clk);
-       clk_put(mcfqspi->clk);
-       free_irq(mcfqspi->irq, mcfqspi);
-       iounmap(mcfqspi->iobase);
-       release_mem_region(res->start, resource_size(res));
-       spi_unregister_master(master);
 
        return 0;
 }
-- 
1.7.10.4


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