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driver core: Move device_links_purge() after bus_remove_device()
commit2ec1615017
upstream. The current ordering of code in device_del() triggers a WARN_ON() in device_links_purge(), because of an unexpected link status. The device_links_unbind_consumers() call in device_release_driver() has to take place before device_links_purge() for the status of all links to be correct, so move the device_links_purge() call in device_del() after the invocation of bus_remove_device() which calls device_release_driver(). Fixes:9ed9895370
(driver core: Functional dependencies tracking support) Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1973,7 +1973,6 @@ void device_del(struct device *dev)
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blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
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BUS_NOTIFY_DEL_DEVICE, dev);
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device_links_purge(dev);
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dpm_sysfs_remove(dev);
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if (parent)
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klist_del(&dev->p->knode_parent);
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@ -2001,6 +2000,7 @@ void device_del(struct device *dev)
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device_pm_remove(dev);
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driver_deferred_probe_del(dev);
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device_remove_properties(dev);
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device_links_purge(dev);
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/* Notify the platform of the removal, in case they
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* need to do anything...
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