From: Fabio Estevam <fabio.estevam@nxp.com>
Date: Sat, 22 Jul 2017 20:25:19 +0000 (-0300)
Subject: PCI: armada8k: Check the return value from clk_prepare_enable()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e2e5d7bf9ba68e2ed0c70e10892472a8dd9ed9c2;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

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>
---

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");