diff options
| author | Leon Romanovsky <leonro@mellanox.com> | 2019-06-16 15:05:20 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2019-06-20 22:17:59 +0300 |
| commit | 836a0fbb3e76f704ad65ddfb57f00725245e509b (patch) | |
| tree | 30d961b48c7029a952e6eeb5077d76ce0e4a5221 /drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c | |
| parent | 89a6da3cb8f30ee0aeca924d84bef688f22f883e (diff) | |
| download | linux-836a0fbb3e76f704ad65ddfb57f00725245e509b.tar.xz | |
RDMA: Check umem pointer validity prior to release
Update ib_umem_release() to behave similarly to kfree() and allow
submitting NULL pointer as safe input to this function.
Fixes: a52c8e2469c3 ("RDMA: Clean destroy CQ in drivers do not return errors")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c')
| -rw-r--r-- | drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c index 38573fc0a9bf..7800e6930502 100644 --- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c +++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_cq.c @@ -213,8 +213,7 @@ int pvrdma_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, err_page_dir: pvrdma_page_dir_cleanup(dev, &cq->pdir); err_umem: - if (!cq->is_kernel) - ib_umem_release(cq->umem); + ib_umem_release(cq->umem); err_cq: atomic_dec(&dev->num_cqs); return ret; @@ -226,8 +225,7 @@ static void pvrdma_free_cq(struct pvrdma_dev *dev, struct pvrdma_cq *cq) complete(&cq->free); wait_for_completion(&cq->free); - if (!cq->is_kernel) - ib_umem_release(cq->umem); + ib_umem_release(cq->umem); pvrdma_page_dir_cleanup(dev, &cq->pdir); } |