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RDMA/core: Verify that memory window type is legal 

Before calling the provider's alloc_mw function, verify that the
given memory type is either IB_MW_TYPE_1 or IB_MW_TYPE_2.

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Noa Osherovich 2019-02-19 15:07:34 +02:00 committed by Jason Gunthorpe
parent 1882ab8678
commit d0e02bf6cd
1 changed files with 5 additions and 0 deletions
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5
drivers/infiniband/core/uverbs_cmd.c
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@ -885,6 +885,11 @@ static int ib_uverbs_alloc_mw(struct uverbs_attr_bundle *attrs)
goto err_free;
}
if (cmd.mw_type != IB_MW_TYPE_1 && cmd.mw_type != IB_MW_TYPE_2) {
ret = -EINVAL;
goto err_put;
}
mw = pd->device->ops.alloc_mw(pd, cmd.mw_type, &attrs->driver_udata);
if (IS_ERR(mw)) {
ret = PTR_ERR(mw);