usb: chipidea: msm: Use device-managed registration API

Use devm_reset_controller_register to get rid
of manual unregistration.
Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Link: https://lore.kernel.org/r/20190902014323.27588-1-hslester96@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/chipidea/ci_hdrc_msm.c

@@ -216,13 +216,13 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
 	ci->rcdev.ops = &ci_hdrc_msm_reset_ops;
 	ci->rcdev.of_node = pdev->dev.of_node;
 	ci->rcdev.nr_resets = 2;
-	ret = reset_controller_register(&ci->rcdev);
+	ret = devm_reset_controller_register(&pdev->dev, &ci->rcdev);
 	if (ret)
 		return ret;
 
 	ret = clk_prepare_enable(ci->fs_clk);
 	if (ret)
-		goto err_fs;
+		return ret;
 
 	reset_control_assert(reset);
 	usleep_range(10000, 12000);
@@ -232,7 +232,7 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
 
 	ret = clk_prepare_enable(ci->core_clk);
 	if (ret)
-		goto err_fs;
+		return ret;
 
 	ret = clk_prepare_enable(ci->iface_clk);
 	if (ret)
@@ -271,8 +271,6 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
 	clk_disable_unprepare(ci->iface_clk);
 err_iface:
 	clk_disable_unprepare(ci->core_clk);
-err_fs:
-	reset_controller_unregister(&ci->rcdev);
 	return ret;
 }
 
@@ -284,7 +282,6 @@ static int ci_hdrc_msm_remove(struct platform_device *pdev)
 	ci_hdrc_remove_device(ci->ci);
 	clk_disable_unprepare(ci->iface_clk);
 	clk_disable_unprepare(ci->core_clk);
-	reset_controller_unregister(&ci->rcdev);
 
 	return 0;
 }