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xen-devel
[Xen-devel] [PATCH 1 of 8] blktap: Fix tap kobj double unref in sysfs_de
It's that final put_device in device_unregister which is supposed to
clear the caller's reference. Subtle indeed, because refcount went
2->3 when after sysfs_destroy:
+1 for our own ring->dev
+1 for the open sysfs ./remove attribute
+1 for the callback scheduled
Drops to 1 in device_unregister and 0 only after leaving callbacks.
Signed-off-by: Daniel Stodden <daniel.stodden@xxxxxxxxxx>
fix-double-free.diff
Description: Text Data
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