From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-f193.google.com ([209.85.216.193]:33536 "EHLO mail-qt0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750735AbdGVUYV (ORCPT ); Sat, 22 Jul 2017 16:24:21 -0400 Received: by mail-qt0-f193.google.com with SMTP id 50so9131348qtz.0 for ; Sat, 22 Jul 2017 13:24:21 -0700 (PDT) From: Fabio Estevam To: bhelgaas@google.com Cc: thomas.petazzoni@free-electrons.com, linux-pci@vger.kernel.org, Fabio Estevam Subject: [PATCH] pciarmada: Check the return value from clk_prepare_enable() Date: Sat, 22 Jul 2017 17:24:02 -0300 Message-Id: <1500755042-19919-1-git-send-email-festevam@gmail.com> Sender: linux-pci-owner@vger.kernel.org List-ID: From: Fabio Estevam clk_prepare_enable() may fail, so we should better check its return value and propagate it in the case of error. Signed-off-by: Fabio Estevam --- 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 ea8f34a..7297223 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"); -- 2.7.4