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Mark Zhang authored
During cm_dev deregistration in cm_remove_one(), the cm_device and cm_ports will be freed, after that they should not be accessed. The mad_agent needs to be protected as well. This patch adds a cm_device kref to protect cm_dev and cm_ports, and a mad_agent_lock spinlock to protect mad_agent. Link: https://lore.kernel.org/r/501ba7a2ff203dccd0e6755d3f93329772adce52.1622629024.git.leonro@nvidia.comSigned-off-by: Mark Zhang <markzhang@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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