[PATCH] PCI: fix ptr_ret.cocci warnings

From: kbuild test robot <fengguang.wu@intel.com>
To: Shawn Lin <shawn.lin@rock-chips.com>
Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org,
	Bjorn Helgaas <helgaas@kernel.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Jonathan Hunter <jonathanh@nvidia.com>,
	linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org
Subject: [PATCH] PCI: fix ptr_ret.cocci warnings
Date: Thu, 12 Jul 2018 07:30:41 +0800	[thread overview]
Message-ID: <20180711233041.GA39597@lkp-sbx04> (raw)
In-Reply-To: <201807120738.oIXXb65q%fengguang.wu@intel.com>

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

drivers/pci/controller/pci-tegra.c:1132:1-3: 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@rock-chips.com>
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
---

 pci-tegra.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -1129,10 +1129,7 @@ static int tegra_pcie_resets_get(struct
 		return PTR_ERR(pcie->afi_rst);
 
 	pcie->pcie_xrst = devm_reset_control_get_exclusive(dev, "pcie_x");
-	if (IS_ERR(pcie->pcie_xrst))
-		return PTR_ERR(pcie->pcie_xrst);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(pcie->pcie_xrst);
 }
 
 static int tegra_pcie_phys_get_legacy(struct tegra_pcie *pcie)
