usb: chipidea: using devm_request_irq to instead of request_irq

Using devm_request_irq to instead of request_irq.
Suggested-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NPeter Chen <peter.chen@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/chipidea/core.c

@@ -759,8 +759,8 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, ci);
-	ret = request_irq(ci->irq, ci_irq, IRQF_SHARED, ci->platdata->name,
-			  ci);
+	ret = devm_request_irq(dev, ci->irq, ci_irq, IRQF_SHARED,
+			ci->platdata->name, ci);
 	if (ret)
 		goto stop;
 
@@ -771,7 +771,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	if (!ret)
 		return 0;
 
-	free_irq(ci->irq, ci);
 stop:
 	ci_role_destroy(ci);
 deinit_phy:
@@ -785,7 +784,6 @@ static int ci_hdrc_remove(struct platform_device *pdev)
 	struct ci_hdrc *ci = platform_get_drvdata(pdev);
 
 	dbg_remove_files(ci);
-	free_irq(ci->irq, ci);
 	ci_role_destroy(ci);
 	ci_hdrc_enter_lpm(ci, true);
 	ci_usb_phy_exit(ci);