On 04/11/2014 01:56 AM, Duan Jiong wrote: > This patch fixes coccinelle error regarding usage of IS_ERR and > PTR_ERR instead of PTR_ERR_OR_ZERO. > diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c > @@ -1024,10 +1024,7 @@ static int tegra_pcie_resets_get(struct tegra_pcie *pcie) > return PTR_ERR(pcie->afi_rst); > > pcie->pcie_xrst = devm_reset_control_get(pcie->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); > } To be honest, I prefer the existing code. If we needed to add some more code between the call to devm_reset_control_get() and the return statement, the diff would be much cleaner if the error-handling path and the regular return path were kept separate, as they are today. Why is coccinelle throwing an error? The compiler likely makes identical code for both source representations. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
