usb: dwc3: exynos fix axius clock error path to do cleanup

BugLink: http://bugs.launchpad.net/bugs/1702104

commit 8ae584d1 upstream.

Axius clock error path returns without disabling clock and suspend clock.
Fix it to disable them before returning error.
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>

drivers/usb/dwc3/dwc3-exynos.c

@@ -148,7 +148,8 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 		exynos->axius_clk = devm_clk_get(dev, "usbdrd30_axius_clk");
 		if (IS_ERR(exynos->axius_clk)) {
 			dev_err(dev, "no AXI UpScaler clk specified\n");
-			return -ENODEV;
+			ret = -ENODEV;
+			goto axius_clk_err;
 		}
 		clk_prepare_enable(exynos->axius_clk);
 	} else {
@@ -206,6 +207,7 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 	regulator_disable(exynos->vdd33);
 err2:
 	clk_disable_unprepare(exynos->axius_clk);
+axius_clk_err:
 	clk_disable_unprepare(exynos->susp_clk);
 	clk_disable_unprepare(exynos->clk);
 	return ret;