Simplify probe and cleanup code by using devm_ioremap_resource. This also
makes probe code to follow more common allocate private struct followed by
other initialization style.
Signed-off-by: Jarkko Nikula <jarkko.nik...@bitmer.com>
---
drivers/mmc/host/omap.c | 41 ++++++++++++-----------------------------
1 file changed, 12 insertions(+), 29 deletions(-)
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 0d669cf..e4c7a03 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1334,22 +1334,19 @@ static int mmc_omap_probe(struct platform_device *pdev)
return -EPROBE_DEFER;
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ host = devm_kzalloc(&pdev->dev, sizeof(struct mmc_omap_host),
+ GFP_KERNEL);
+ if (host == NULL)
+ return -ENOMEM;
+
irq = platform_get_irq(pdev, 0);
- if (res == NULL || irq < 0)
+ if (irq < 0)
return -ENXIO;
- res = request_mem_region(res->start, resource_size(res),
- pdev->name);
- if (res == NULL)
- return -EBUSY;
-
- host = devm_kzalloc(&pdev->dev, sizeof(struct mmc_omap_host),
- GFP_KERNEL);
- if (host == NULL) {
- ret = -ENOMEM;
- goto err_free_mem_region;
- }
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ host->virt_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(host->virt_base))
+ return PTR_ERR(host->virt_base);
INIT_WORK(&host->slot_release_work, mmc_omap_slot_release_work);
INIT_WORK(&host->send_stop_work, mmc_omap_send_stop_work);
@@ -1374,15 +1371,9 @@ static int mmc_omap_probe(struct platform_device *pdev)
host->irq = irq;
host->use_dma = 1;
host->phys_base = res->start;
- host->virt_base = ioremap(res->start, resource_size(res));
- if (!host->virt_base)
- goto err_ioremap;
-
host->iclk = clk_get(&pdev->dev, "ick");
- if (IS_ERR(host->iclk)) {
- ret = PTR_ERR(host->iclk);
- goto err_free_mmc_host;
- }
+ if (IS_ERR(host->iclk))
+ return PTR_ERR(host->iclk);
clk_enable(host->iclk);
host->fclk = clk_get(&pdev->dev, "fck");
@@ -1460,11 +1451,6 @@ err_free_dma:
err_free_iclk:
clk_disable(host->iclk);
clk_put(host->iclk);
-err_free_mmc_host:
- iounmap(host->virt_base);
-err_ioremap:
-err_free_mem_region:
- release_mem_region(res->start, resource_size(res));
return ret;
}
@@ -1492,9 +1478,6 @@ static int mmc_omap_remove(struct platform_device *pdev)
if (host->dma_rx)
dma_release_channel(host->dma_rx);
- iounmap(host->virt_base);
- release_mem_region(pdev->resource[0].start,
- pdev->resource[0].end - pdev->resource[0].start + 1);
destroy_workqueue(host->mmc_omap_wq);
return 0;
--
1.8.4.3
--
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