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| author |   Kamal Heib <kamalheib1@gmail.com> | 2018-07-27 21:23:05 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-07-30 20:31:09 -0600 |
| commit | 0584c47bbc3b3149bfe544d4e090fb6d96addf6c (patch) | |
| tree | 996265242ada89b4d65c8e6767596a0a55bce552 /drivers/infiniband/core/verbs.c | |
| parent | RDMA/core: Remove {create,destroy}_ah from mandatory verbs (diff) | |
| download | linux-dev-0584c47bbc3b3149bfe544d4e090fb6d96addf6c.tar.xz linux-dev-0584c47bbc3b3149bfe544d4e090fb6d96addf6c.zip | |
RDMA/core: Check for verbs callbacks before using them
Make sure the providers implement the verbs callbacks before calling
them, otherwise return -EOPNOTSUPP.
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index cde359d48d34..5b76c7ebfa02 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -479,6 +479,9 @@ static struct ib_ah *_rdma_create_ah(struct ib_pd *pd, { struct ib_ah *ah; + if (!pd->device->create_ah) + return ERR_PTR(-EOPNOTSUPP); + ah = pd->device->create_ah(pd, ah_attr, udata); if (!IS_ERR(ah)) { |