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usb: ohci-at91: replace request_mem_region + ioremap by devm_ioremap_resource
Replace the request_mem_region + ioremap calls by the devm_ioremap_resource call which does the same things but with device managed resources. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -154,24 +154,17 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
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hcd->rsrc_start = pdev->resource[0].start;
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hcd->rsrc_len = resource_size(&pdev->resource[0]);
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if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
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pr_debug("request_mem_region failed\n");
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retval = -EBUSY;
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goto err1;
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}
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hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
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if (!hcd->regs) {
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pr_debug("ioremap failed\n");
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retval = -EIO;
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goto err2;
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hcd->regs = devm_ioremap_resource(dev, res);
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if (IS_ERR(hcd->regs)) {
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retval = PTR_ERR(hcd->regs);
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goto err;
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}
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iclk = clk_get(&pdev->dev, "ohci_clk");
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if (IS_ERR(iclk)) {
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dev_err(&pdev->dev, "failed to get ohci_clk\n");
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retval = PTR_ERR(iclk);
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goto err3;
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goto err;
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}
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fclk = clk_get(&pdev->dev, "uhpck");
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if (IS_ERR(fclk)) {
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@ -217,13 +210,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
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err4:
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clk_put(iclk);
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err3:
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iounmap(hcd->regs);
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err2:
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release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
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err1:
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err:
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usb_put_hcd(hcd);
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return retval;
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}
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@ -246,8 +233,6 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd,
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{
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usb_remove_hcd(hcd);
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at91_stop_hc(pdev);
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iounmap(hcd->regs);
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release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
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usb_put_hcd(hcd);
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if (IS_ENABLED(CONFIG_COMMON_CLK))
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