[PATCH] PCI: dwc: exynos: Check the phy_power_on() return value

[Fabio Estevam <festevam@xxxxxxxxx>]

phy_power_on() may fail, so we should better check its return
value and propagate it in the error case.

This fixes the following Coverity error:

	CID 1472841:  Error handling issues  (CHECKED_RETURN)
	Calling "phy_power_on" without checking return value (as is done elsewhere 40 out of 50 times).
	phy_power_on(ep->phy);
	phy_init(ep->phy);
           
Reported-by: Bjorn Helgaas <helgaas@xxxxxxxxxx>
Signed-off-by: Fabio Estevam <festevam@xxxxxxxxx>
---
 drivers/pci/controller/dwc/pci-exynos.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pci-exynos.c b/drivers/pci/controller/dwc/pci-exynos.c
index c24dab383654..eabedc0529cb 100644
--- a/drivers/pci/controller/dwc/pci-exynos.c
+++ b/drivers/pci/controller/dwc/pci-exynos.c
@@ -254,13 +254,17 @@ static int exynos_pcie_host_init(struct pcie_port *pp)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 	struct exynos_pcie *ep = to_exynos_pcie(pci);
+	int ret;
 
 	pp->bridge->ops = &exynos_pci_ops;
 
 	exynos_pcie_assert_core_reset(ep);
 
 	phy_reset(ep->phy);
-	phy_power_on(ep->phy);
+	ret = phy_power_on(ep->phy);
+	if (ret < 0)
+		return ret;
+
 	phy_init(ep->phy);
 
 	exynos_pcie_deassert_core_reset(ep);
-- 
2.25.1