drivers/acpi/scan.c: inconsequent NULL handling

[Adrian Bunk <bunk@stusta.de>]

The Coverity checker found the following:

<--  snip  -->

static int
acpi_bus_match (
        struct acpi_device      *device,
        struct acpi_driver      *driver)
{
        if (driver && driver->ops.match)
                return driver->ops.match(device, driver);
        return acpi_match_ids(device, driver->ids);
}

<--  snip  -->


Either driver can be NULL, in which case the driver->ids is a possible 
NULL pointer reference, or it can't, in which case the check whether 
it's NULL is superfluous.


cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed