From: Fabio Estevam <fabio.estevam@nxp.com>
Date: Sat, 22 Jul 2017 17:25:19 -0300
Subject: PCI: armada8k: Check the return value from clk_prepare_enable()
Git-commit: e2e5d7bf9ba68e2ed0c70e10892472a8dd9ed9c2
Patch-mainline: v4.14-rc1
References: fate#326536, fate#326532
clk_prepare_enable() may fail, so check its return value and propagate it
in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/pci/dwc/pcie-armada8k.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/dwc/pcie-armada8k.c b/drivers/pci/dwc/pcie-armada8k.c
index ea8f34af6a85..729722366c63 100644
--- a/drivers/pci/dwc/pcie-armada8k.c
+++ b/drivers/pci/dwc/pcie-armada8k.c
@@ -226,7 +226,9 @@ static int armada8k_pcie_probe(struct platform_device *pdev)
if (IS_ERR(pcie->clk))
return PTR_ERR(pcie->clk);
- clk_prepare_enable(pcie->clk);
+ ret = clk_prepare_enable(pcie->clk);
+ if (ret)
+ return ret;
/* Get the dw-pcie unit configuration/control registers base. */
base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl");
--
2.11.0