drivers/acpi/sbs.c:acpi_sbs_remove() inconsistent NULL checking

The Coverity checker spotted the following inconsistent NULL checking introduced by commit 3f86b83243d59bb50caf5938d284d22e10d082a4:

<-- snip -->

...
int acpi_sbs_remove(struct acpi_device *device, int type)

{
        struct acpi_sbs *sbs = (struct acpi_sbs *)acpi_driver_data(device);
        int id;

        if (!device || !sbs) {
                return -EINVAL;
        }

...

<-- snip -->

The NULL check for "device" is three lines after it got dereferenced the first time.

cu
Adrian

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