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Subject[PATCH 4/6] driver core: Don't leak secondary fwnode on device removal
If device_add_property_set() is called for a device, a secondary fwnode
is allocated and assigned to the device but currently not freed once the
device is removed.

This can be triggered on Apple Macs if a Thunderbolt device is plugged
in on boot since Apple's NHI EFI driver sets a number of properties for
that device which are leaked on unplug.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Andreas Noever <andreas.noever@gmail.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
---
drivers/base/core.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 0a8bdad..70c5be5 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1266,6 +1266,7 @@ void device_del(struct device *dev)
bus_remove_device(dev);
device_pm_remove(dev);
driver_deferred_probe_del(dev);
+ device_remove_properties(dev);

/* Notify the platform of the removal, in case they
* need to do anything...
--
2.8.1
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