[PATCH v2 11/22] mfd: omap-usb-host: Use devm_kzalloc() and devm_request_and_ioremap()

[Roger Quadros]

Use devm_ variants of kzalloc and ioremap. Also clean up error path.

Signed-off-by: Roger Quadros <rog...@ti.com>
---
 drivers/mfd/omap-usb-host.c |   36 +++++++++---------------------------
 1 files changed, 9 insertions(+), 27 deletions(-)

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index ffd2013..afa0ff6 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -465,17 +465,20 @@ static int __devinit usbhs_omap_probe(struct 
platform_device *pdev)
 
        if (!pdata) {
                dev_err(dev, "Missing platform data\n");
-               ret = -ENOMEM;
-               goto end_probe;
+               return -ENODEV;
        }
 
-       omap = kzalloc(sizeof(*omap), GFP_KERNEL);
+       omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL);
        if (!omap) {
                dev_err(dev, "Memory allocation failed\n");
-               ret = -ENOMEM;
-               goto end_probe;
+               return -ENOMEM;
        }
 
+       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
+       omap->uhh_base = devm_request_and_ioremap(dev, res);
+       if (!omap->uhh_base)
+               return -EADDRNOTAVAIL;
+
        spin_lock_init(&omap->lock);
 
        omap->pdata = pdata;
@@ -573,20 +576,6 @@ static int __devinit usbhs_omap_probe(struct 
platform_device *pdev)
                                "failed error:%d\n", ret);
        }
 
-       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
-       if (!res) {
-               dev_err(dev, "UHH EHCI get resource failed\n");
-               ret = -ENODEV;
-               goto err_init_60m_fclk;
-       }
-
-       omap->uhh_base = ioremap(res->start, resource_size(res));
-       if (!omap->uhh_base) {
-               dev_err(dev, "UHH ioremap failed\n");
-               ret = -ENOMEM;
-               goto err_init_60m_fclk;
-       }
-
        platform_set_drvdata(pdev, omap);
 
        omap_usbhs_init(dev);
@@ -596,13 +585,10 @@ static int __devinit usbhs_omap_probe(struct 
platform_device *pdev)
                goto err_alloc;
        }
 
-       goto end_probe;
+       return 0;
 
 err_alloc:
        omap_usbhs_deinit(&pdev->dev);
-       iounmap(omap->uhh_base);
-
-err_init_60m_fclk:
        clk_put(omap->init_60m_fclk);
 
 err_usbhost_p2_fck:
@@ -626,9 +612,7 @@ err_utmi_p1_fck:
 err_end:
        clk_put(omap->ehci_logic_fck);
        pm_runtime_disable(dev);
-       kfree(omap);
 
-end_probe:
        return ret;
 }
 
@@ -643,7 +627,6 @@ static int __devexit usbhs_omap_remove(struct 
platform_device *pdev)
        struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev);
 
        omap_usbhs_deinit(&pdev->dev);
-       iounmap(omap->uhh_base);
        clk_put(omap->init_60m_fclk);
        clk_put(omap->usbhost_p2_fck);
        clk_put(omap->usbhost_p1_fck);
@@ -653,7 +636,6 @@ static int __devexit usbhs_omap_remove(struct 
platform_device *pdev)
        clk_put(omap->utmi_p1_fck);
        clk_put(omap->ehci_logic_fck);
        pm_runtime_disable(&pdev->dev);
-       kfree(omap);
 
        return 0;
 }
-- 
1.7.4.1

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