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PCI: dwc: Use PTR_ERR_OR_ZERO to simplify code 

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR to avoid the
following warnings found by scripts/coccinelle/api/ptr_ret.cocci:

  drivers/pci/dwc/pcie-qcom.c:215:1-3: WARNING: PTR_ERR_OR_ZERO can be used
  drivers/pci/dwc/pcie-qcom.c:247:1-3: WARNING: PTR_ERR_OR_ZERO can be used
  drivers/pci/dwc/pcie-qcom.c:481:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Fengguang Wu 2017-02-04 09:35:32 +08:00 committed by Bjorn Helgaas
parent 1f6c4501c6
commit 11a61a8602
1 changed files with 3 additions and 12 deletions
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15
drivers/pci/dwc/pcie-qcom.c
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@ -212,10 +212,7 @@ static int qcom_pcie_get_resources_v0(struct qcom_pcie *pcie)
return PTR_ERR(res->por_reset);
res->phy_reset = devm_reset_control_get(dev, "phy");
if (IS_ERR(res->phy_reset))
return PTR_ERR(res->phy_reset);
return 0;
return PTR_ERR_OR_ZERO(res->phy_reset);
}
static int qcom_pcie_get_resources_v1(struct qcom_pcie *pcie)
@ -244,10 +241,7 @@ static int qcom_pcie_get_resources_v1(struct qcom_pcie *pcie)
return PTR_ERR(res->slave_bus);
res->core = devm_reset_control_get(dev, "core");
if (IS_ERR(res->core))
return PTR_ERR(res->core);
return 0;
return PTR_ERR_OR_ZERO(res->core);
}
static void qcom_pcie_deinit_v0(struct qcom_pcie *pcie)
@ -478,10 +472,7 @@ static int qcom_pcie_get_resources_v2(struct qcom_pcie *pcie)
return PTR_ERR(res->slave_clk);
res->pipe_clk = devm_clk_get(dev, "pipe");
if (IS_ERR(res->pipe_clk))
return PTR_ERR(res->pipe_clk);
return 0;
return PTR_ERR_OR_ZERO(res->pipe_clk);
}
static int qcom_pcie_init_v2(struct qcom_pcie *pcie)