gsc->clock = ERR_PTR(-EINVAL);
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       gsc->regs = devm_request_and_ioremap(dev, res);
-       if (!gsc->regs) {
-               dev_err(dev, "failed to map registers\n");
-               return -ENOENT;
-       }
+       gsc->regs = devm_ioremap_resource(dev, res);
+       if (IS_ERR(gsc->regs))
+               return PTR_ERR(gsc->regs);
 
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (!res) {
 
 
        platform_set_drvdata(pdev, pcdev);
 
-       pcdev->base_emma = devm_request_and_ioremap(&pdev->dev, res_emma);
-       if (!pcdev->base_emma) {
-               ret = -ENXIO;
+       pcdev->base_emma = devm_ioremap_resource(&pdev->dev, res_emma);
+       if (IS_ERR(pcdev->base_emma)) {
+               ret = PTR_ERR(pcdev->base_emma);
                goto rel_vdev;
        }
 
 
 
        mres = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-       camif->io_base = devm_request_and_ioremap(dev, mres);
-       if (!camif->io_base) {
-               dev_err(dev, "failed to obtain I/O memory\n");
-               return -ENOENT;
-       }
+       camif->io_base = devm_ioremap_resource(dev, mres);
+       if (IS_ERR(camif->io_base))
+               return PTR_ERR(camif->io_base);
 
        ret = camif_request_irqs(pdev, camif);
        if (ret < 0)
 
        mutex_init(&fimc->lock);
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
-       if (fimc->regs == NULL) {
-               dev_err(&pdev->dev, "Failed to obtain io memory\n");
-               return -ENOENT;
-       }
+       fimc->regs = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(fimc->regs))
+               return PTR_ERR(fimc->regs);
 
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (res == NULL) {
 
        mutex_init(&fimc->lock);
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
-       if (fimc->regs == NULL) {
-               dev_err(&pdev->dev, "Failed to obtain io memory\n");
-               return -ENOENT;
-       }
+       fimc->regs = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(fimc->regs))
+               return PTR_ERR(fimc->regs);
 
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (res == NULL) {
 
        }
 
        mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       state->regs = devm_request_and_ioremap(&pdev->dev, mem_res);
-       if (state->regs == NULL) {
-               dev_err(&pdev->dev, "Failed to request and remap io memory\n");
-               return -ENXIO;
-       }
+       state->regs = devm_ioremap_resource(&pdev->dev, mem_res);
+       if (IS_ERR(state->regs))
+               return PTR_ERR(state->regs);
 
        state->irq = platform_get_irq(pdev, 0);
        if (state->irq < 0) {
 
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-       dev->regs = devm_request_and_ioremap(&pdev->dev, res);
-       if (dev->regs == NULL) {
-                       dev_err(&pdev->dev, "Failed to obtain io memory\n");
-                       return -ENOENT;
-       }
+       dev->regs = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(dev->regs))
+               return PTR_ERR(dev->regs);
 
        dev->clk = clk_get(&pdev->dev, "sclk_fimg2d");
        if (IS_ERR(dev->clk)) {
 
        /* memory-mapped registers */
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-       jpeg->regs = devm_request_and_ioremap(&pdev->dev, res);
-       if (jpeg->regs == NULL) {
-               dev_err(&pdev->dev, "Failed to obtain io memory\n");
-               return -ENOENT;
-       }
+       jpeg->regs = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(jpeg->regs))
+               return PTR_ERR(jpeg->regs);
 
        /* interrupt service routine registration */
        jpeg->irq = ret = platform_get_irq(pdev, 0);
 
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-       dev->regs_base = devm_request_and_ioremap(&pdev->dev, res);
-       if (dev->regs_base == NULL) {
-               dev_err(&pdev->dev, "Failed to obtain io memory\n");
-               return -ENOENT;
-       }
+       dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(dev->regs_base))
+               return PTR_ERR(dev->regs_base);
 
        res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
        if (res == NULL) {
 
                goto out;
        }
 
-       pcdev->base_emma = devm_request_and_ioremap(pcdev->dev, res_emma);
-       if (!pcdev->base_emma) {
-               err = -EADDRNOTAVAIL;
+       pcdev->base_emma = devm_ioremap_resource(pcdev->dev, res_emma);
+       if (IS_ERR(pcdev->base_emma)) {
+               err = PTR_ERR(pcdev->base_emma);
                goto out;
        }
 
        INIT_LIST_HEAD(&pcdev->discard);
        spin_lock_init(&pcdev->lock);
 
-       pcdev->base_csi = devm_request_and_ioremap(&pdev->dev, res_csi);
-       if (!pcdev->base_csi) {
-               err = -EADDRNOTAVAIL;
+       pcdev->base_csi = devm_ioremap_resource(&pdev->dev, res_csi);
+       if (IS_ERR(pcdev->base_csi)) {
+               err = PTR_ERR(pcdev->base_csi);
                goto exit;
        }