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driver core: bus_add_driver should return an error if no bus
As pointed out by Dave Jones. Cc: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -603,7 +603,7 @@ int bus_add_driver(struct device_driver *drv)
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int error = 0;
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if (!bus)
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return 0;
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return -EINVAL;
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pr_debug("bus %s: add driver %s\n", bus->name, drv->name);
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error = kobject_set_name(&drv->kobj, "%s", drv->name);
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