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b780d7415a
In case nvme_sysfs_delete() is called by the user before taking the ctrl reference count, the ctrl may be freed during the creation and cause the bug. Take the reference as soon as the controller is externally visible, which is done by cdev_device_add() in nvme_init_ctrl(). Also take the reference count at the core layer instead of taking it on each transport separately. Signed-off-by: Israel Rukshin <israelr@mellanox.com> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org> |
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