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PCI: armada8k: Check the return value from clk_prepare_enable() 

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>
This commit is contained in:
Fabio Estevam 2017-07-22 17:25:19 -03:00 committed by Bjorn Helgaas
parent 16f73eb02d
commit e2e5d7bf9b
1 changed files with 3 additions and 1 deletions
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4
drivers/pci/dwc/pcie-armada8k.c
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@ -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");