1 files changed, 18 insertions, 5 deletions

diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index 13e24f913dd4..fb7dc52394a8 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -847,6 +847,14 @@ static int __init omap_sr_probe(struct platform_device *pdev)
                 goto err_free_devinfo;
         }
 
+        mem = request_mem_region(mem->start, resource_size(mem),
+                                        dev_name(&pdev->dev));
+        if (!mem) {
+                dev_err(&pdev->dev, "%s: no mem region\n", __func__);
+                ret = -EBUSY;
+                goto err_free_devinfo;
+        }
+
         irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 
         pm_runtime_enable(&pdev->dev);
@@ -883,7 +891,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
                 ret = sr_late_init(sr_info);
                 if (ret) {
                         pr_warning("%s: Error in SR late init\n", __func__);
-                        goto err_release_region;
+                        return ret;
                 }
         }
 
@@ -896,7 +904,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
         vdd_dbg_dir = omap_voltage_get_dbgdir(sr_info->voltdm);
         if (!vdd_dbg_dir) {
                 ret = -EINVAL;
-                goto err_release_region;
+                goto err_iounmap;
         }
 
         sr_info->dbg_dir = debugfs_create_dir("smartreflex", vdd_dbg_dir);
@@ -904,7 +912,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
                 dev_err(&pdev->dev, "%s: Unable to create debugfs directory\n",
                         __func__);
                 ret = PTR_ERR(sr_info->dbg_dir);
-                goto err_release_region;
+                goto err_iounmap;
         }
 
         (void) debugfs_create_file("autocomp", S_IRUGO | S_IWUSR,
@@ -921,7 +929,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
                 dev_err(&pdev->dev, "%s: Unable to create debugfs directory"
                         "for n-values\n", __func__);
                 ret = PTR_ERR(nvalue_dir);
-                goto err_release_region;
+                goto err_debugfs;
         }
 
         omap_voltage_get_volttable(sr_info->voltdm, &volt_data);
@@ -931,7 +939,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
                         "entries for n-values\n",
                         __func__, sr_info->voltdm->name);
                 ret = -ENODATA;
-                goto err_release_region;
+                goto err_debugfs;
         }
 
         for (i = 0; i < sr_info->nvalue_count; i++) {
@@ -945,6 +953,11 @@ static int __init omap_sr_probe(struct platform_device *pdev)
 
         return ret;
 
+err_debugfs:
+        debugfs_remove_recursive(sr_info->dbg_dir);
+err_iounmap:
+        list_del(&sr_info->node);
+        iounmap(sr_info->base);
 err_release_region:
         release_mem_region(mem->start, resource_size(mem));
 err_free_devinfo: