From mboxrd@z Thu Jan 1 00:00:00 1970 From: Colin King Date: Mon, 21 Sep 2020 21:15:55 +0000 Subject: [PATCH][V2][next] PCI: brcmstb: fix a missing if statement on a return error check Message-Id: <20200921211555.383458-1-colin.king@canonical.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Nicolas Saenz Julienne , Lorenzo Pieralisi , Rob Herring , Bjorn Helgaas , Florian Fainelli , bcm-kernel-feedback-list@broadcom.com, Jim Quinlan , linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org From: Colin Ian King The error return ret is not being check with an if statement and currently the code always returns leaving the following code as dead code. Fix this by adding in the missing if statement and clean up with the clk_disable_unprepare call. Kudos to Florian Fainelli for noting that the clock needed disabling. Addresses-Coverity: ("Structurally dead code") Fixes: ad3d29c77e1e ("PCI: brcmstb: Add control of rescal reset") Signed-off-by: Colin Ian King --- V2: disable clock as noted by Florian Fainelli and suggested by Jim Quinlan. --- drivers/pci/controller/pcie-brcmstb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c index 7a3ff4632e7c..25f46f87b36f 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -1154,7 +1154,10 @@ static int brcm_pcie_resume(struct device *dev) clk_prepare_enable(pcie->clk); ret = brcm_phy_start(pcie); + if (ret) { + clk_disable_unprepare(pcie->clk); return ret; + } /* Take bridge out of reset so we can access the SERDES reg */ pcie->bridge_sw_init_set(pcie, 0); -- 2.27.0