linux-kernel - [PATCH] PCI: fix ptr

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Date:   Fri, 20 Jul 2018 07:42:43 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Shawn Lin <shawn.lin@...k-chips.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Bjorn Helgaas <helgaas@...nel.org>,
        Xiaowei Song <songxiaowei@...ilicon.com>,
        Binghui Wang <wangbinghui@...ilicon.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        linux-pci@...r.kernel.org
Subject: [PATCH] PCI: fix ptr_ret.cocci warnings

From: kbuild test robot <fengguang.wu@...el.com>

drivers/pci/controller/dwc/pcie-kirin.c:141:1-3: WARNING: PTR_ERR_OR_ZERO can be used
drivers/pci/controller/dwc/pcie-kirin.c:177:1-3: WARNING: PTR_ERR_OR_ZERO can be used


 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Fixes: 6e0832fa432e ("PCI: Collect all native drivers under drivers/pci/controller/")
CC: Shawn Lin <shawn.lin@...k-chips.com>
Signed-off-by: kbuild test robot <fengguang.wu@...el.com>
---

 pcie-kirin.c |   10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

--- a/drivers/pci/controller/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
@@ -138,10 +138,7 @@ static long kirin_pcie_get_clk(struct ki
 		return PTR_ERR(kirin_pcie->apb_sys_clk);
 
 	kirin_pcie->pcie_aclk = devm_clk_get(dev, "pcie_aclk");
-	if (IS_ERR(kirin_pcie->pcie_aclk))
-		return PTR_ERR(kirin_pcie->pcie_aclk);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(kirin_pcie->pcie_aclk);
 }
 
 static long kirin_pcie_get_resource(struct kirin_pcie *kirin_pcie,
@@ -174,10 +171,7 @@ static long kirin_pcie_get_resource(stru
 
 	kirin_pcie->sysctrl =
 		syscon_regmap_lookup_by_compatible("hisilicon,hi3660-sctrl");
-	if (IS_ERR(kirin_pcie->sysctrl))
-		return PTR_ERR(kirin_pcie->sysctrl);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(kirin_pcie->sysctrl);
 }
 
 static int kirin_pcie_phy_init(struct kirin_pcie *kirin_pcie)