{
        struct acpi_device *acpi_dev;
        struct smi_info *info;
-       struct resource *res;
+       struct resource *res, *res_second;
        acpi_handle handle;
        acpi_status status;
        unsigned long long tmp;
        info->io.addr_data = res->start;
 
        info->io.regspacing = DEFAULT_REGSPACING;
-       res = pnp_get_resource(dev,
+       res_second = pnp_get_resource(dev,
                               (info->io.addr_type == IPMI_IO_ADDR_SPACE) ?
                                        IORESOURCE_IO : IORESOURCE_MEM,
                               1);
-       if (res) {
-               if (res->start > info->io.addr_data)
-                       info->io.regspacing = res->start - info->io.addr_data;
+       if (res_second) {
+               if (res_second->start > info->io.addr_data)
+                       info->io.regspacing = res_second->start - info->io.addr_data;
        }
        info->io.regsize = DEFAULT_REGSPACING;
        info->io.regshift = 0;