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| author |   Weihang Li <liweihang@huawei.com> | 2021-05-28 17:37:38 +0800 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2021-06-08 15:04:36 -0300 |
| commit | ec9bf373f2458f4b5f1ece8b93a07e6204081667 (patch) | |
| tree | 0deb7c0393d151262cfb2e41bd019889fd3de5a9 /drivers/infiniband/core/uverbs.h | |
| parent | RDMA/ipoib: Use refcount_t instead of atomic_t for reference counting (diff) | |
| download | linux-dev-ec9bf373f2458f4b5f1ece8b93a07e6204081667.tar.xz linux-dev-ec9bf373f2458f4b5f1ece8b93a07e6204081667.zip | |
RDMA/core: Use refcount_t instead of atomic_t on refcount of ib_uverbs_device
The refcount_t API will WARN on underflow and overflow of a reference
counter, and avoid use-after-free risks.
Link: https://lore.kernel.org/r/1622194663-2383-8-git-send-email-liweihang@huawei.com
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/core/uverbs.h')
| -rw-r--r-- | drivers/infiniband/core/uverbs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index 53a10479958b..821d93c8f712 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -97,7 +97,7 @@ ib_uverbs_init_udata_buf_or_null(struct ib_udata *udata, */ struct ib_uverbs_device { - atomic_t refcount; + refcount_t refcount; u32 num_comp_vectors; struct completion comp; struct device dev; |