[PATCH] PCI: amlogic: fix ptr_ret.cocci warnings

kbuild test robot
2018-10-08T18:25:19Z

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

drivers/pci/controller/dwc/pci-meson.c:190:1-3: WARNING: PTR_ERR_OR_ZERO can be used
drivers/pci/controller/dwc/pci-meson.c:267:1-3: 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: 32cd91ffa92f ("PCI: amlogic: Add the Amlogic Meson PCIe controller driver")
CC: Yue Wang <yue.wang@amlogic.com>
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
---

url: https://github.com/0day-ci/linux/commits/Hanjie-Lin/add-the-Amlogic-Meson-PCIe-controller-driver/20181009-001429
base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next

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

--- a/drivers/pci/controller/dwc/pci-meson.c
+++ b/drivers/pci/controller/dwc/pci-meson.c
@@ -187,10 +187,7 @@ static int meson_pcie_get_mems(struct pl

/* Meson SoC has two PCI controllers use same phy register*/
mp->mem_res.phy_base = meson_pcie_get_mem_shared(pdev, mp, "phy");
- if (IS_ERR(mp->mem_res.phy_base))
- return PTR_ERR(mp->mem_res.phy_base);
-
- return 0;
+ return PTR_ERR_OR_ZERO(mp->mem_res.phy_base);
}

static void meson_pcie_power_on(struct meson_pcie *mp)
@@ -264,10 +261,7 @@ static int meson_pcie_probe_clocks(struc
return PTR_ERR(res->general_clk);

res->clk = meson_pcie_probe_clock(dev, "pcie", 0);
- if (IS_ERR(res->clk))
- return PTR_ERR(res->clk);
-
- return 0;
+ return PTR_ERR_OR_ZERO(res->clk);
}

static inline void meson_elb_writel(struct meson_pcie *mp, u32 val, u32 reg)