On Mon, 2016-05-30 at 10:10 +0800, Kejian Yan wrote: > The miscellaneous operation is implemented in BIOS, the kernel can > call > _DSM method help to call the implementation in ACPI case. Here is a > patch > to do that. > > +static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb > *mac_cb) > +{ > + phy_interface_t phy_if = PHY_INTERFACE_MODE_NA; > + union acpi_object *obj; > + union acpi_object obj_args, argv4; > + > + obj_args.integer.type = ACPI_TYPE_INTEGER; > + obj_args.integer.value = mac_cb->mac_id; > + > + argv4.type = ACPI_TYPE_PACKAGE, > + argv4.package.count = 1, > + argv4.package.elements = &obj_args, > + > + obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev), > + hns_dsaf_acpi_dsm_uuid, 0, > + HNS_OP_GET_PORT_TYPE_FUNC, &argv4); > + > + if (!obj || obj->type != ACPI_TYPE_INTEGER) Seems you have potential memory leak here if (!obj) return phy_if; if (obj->...) goto exit_free; > + return phy_if; > + > + phy_if = obj->integer.value ? > + PHY_INTERFACE_MODE_XGMII : PHY_INTERFACE_MODE_SGMII; > + > + dev_dbg(mac_cb->dev, "mac_id=%d, phy_if=%d\n", mac_cb- > >mac_id, phy_if); > + + exit_free: > + ACPI_FREE(obj); > + > + return phy_if; > +} > -- Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html