static int __devinit omap1_mbox_probe(struct platform_device *pdev)
 {
        struct resource *res;
-
-       if (pdev->num_resources != 2) {
-               dev_err(&pdev->dev, "invalid number of resources: %d\n",
-                       pdev->num_resources);
-               return -ENODEV;
-       }
+       int ret;
 
        /* MBOX base */
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        }
 
        mbox_base = ioremap(res->start, resource_size(res));
-       if (!mbox_base) {
-               dev_err(&pdev->dev, "ioremap failed\n");
-               return -ENODEV;
-       }
+       if (!mbox_base)
+               return -ENOMEM;
 
        /* DSP IRQ */
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (unlikely(!res)) {
                dev_err(&pdev->dev, "invalid irq resource\n");
-               iounmap(mbox_base);
-               return -ENODEV;
+               ret = -ENODEV;
+               goto err_out;
        }
        mbox_dsp_info.irq = res->start;
 
-       return omap_mbox_register(&pdev->dev, &mbox_dsp_info);
+       ret = omap_mbox_register(&pdev->dev, &mbox_dsp_info);
+       if (ret)
+               goto err_out;
+       return 0;
+
+err_out:
+       iounmap(mbox_base);
+       return ret;
 }
 
 static int __devexit omap1_mbox_remove(struct platform_device *pdev)
 {
        omap_mbox_unregister(&mbox_dsp_info);
-
+       iounmap(mbox_base);
        return 0;
 }