usb: dwc3: pci: Properly cleanup resource

BugLink: http://bugs.launchpad.net/bugs/1768429

commit cabdf83d upstream.

Platform device is allocated before adding resources. Make sure to
properly cleanup on error case.

Cc: <stable@vger.kernel.org>
Fixes: f1c7e710 ("usb: dwc3: convert to pcim_enable_device()")
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

drivers/usb/dwc3/dwc3-pci.c

@@ -167,7 +167,7 @@ static int dwc3_pci_probe(struct pci_dev *pci,
 	ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
 	if (ret) {
 		dev_err(dev, "couldn't add resources to dwc3 device\n");
-		return ret;
+		goto err;
 	}
 
 	pci_set_drvdata(pci, dwc3);