PCI: cadence: Fix runtime PM imbalance on error

pm_runtime_get_sync() increments the runtime PM usage counter even
it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.

Link: https://lore.kernel.org/r/20200520090253.2761-1-dinghao.liu@zju.edu.cn
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

drivers/pci/controller/cadence/pcie-cadence-plat.c

@@ -115,9 +115,8 @@ static int cdns_plat_pcie_probe(struct platform_device *pdev)
 	}
 
  err_init:
-	pm_runtime_put_sync(dev);
-
  err_get_sync:
+	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
 	cdns_pcie_disable_phy(cdns_plat_pcie->pcie);
 	phy_count = cdns_plat_pcie->pcie->phy_count;