usb: dwc3: core: use pm_runtime_put_sync() on remove

commit 16b972a5 upstream.

We are going to disable runtime_pm and we're
removing the driver, we must disable the device
now.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

drivers/usb/dwc3/core.c

@@ -427,7 +427,7 @@ static int __devexit dwc3_remove(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
 	dwc3_debugfs_exit(dwc);