RDMA/hfi1: Convert from atomic_t to refcount_t on hfi1_devdata->user_refcount

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refcount_t type and corresponding API can protect refcounters from
accidental underflow and overflow and further use-after-free situations.

Link: https://lore.kernel.org/r/1626674454-56075-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Tested-by: Josh Fisher <josh.fisher@cornelisnetworks.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Xiyu Yang 2021-07-19 14:00:53 +08:00 • committed by Jason Gunthorpe

parent 62004871e1

commit a0293eb249

4 changed files with 7 additions and 6 deletions

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2

drivers/infiniband/hw/hfi1/chip.c

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6

drivers/infiniband/hw/hfi1/file_ops.c

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3

drivers/infiniband/hw/hfi1/hfi.h

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2

drivers/infiniband/hw/hfi1/init.c

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