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| author |   Parav Pandit <parav@mellanox.com> | 2018-07-29 11:53:09 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-07-30 20:49:04 -0600 |
| commit | 219d2e9dfda9431b808c28d5efc74b404b95b638 (patch) | |
| tree | 140ac9d8d58b1f0f739b8e6ad2c763b01906c3e1 /drivers/infiniband/core | |
| parent | RDMA/cma: Initialize resource type in __rdma_create_id() (diff) | |
| download | linux-dev-219d2e9dfda9431b808c28d5efc74b404b95b638.tar.xz linux-dev-219d2e9dfda9431b808c28d5efc74b404b95b638.zip | |
RDMA/cma: Simplify rdma_resolve_addr() error flow
Currently dst address is first set and later on cleared on either of the
3 error conditions are met.
However none of the APIs or checks are supposed to refer to the
destination address of the cm_id.
Therefore, set the destination address after necessary checks pass which
simplifies the error flow.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core')
| -rw-r--r-- | drivers/infiniband/core/cma.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 714fff27d2e3..0794b99d2507 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -2971,25 +2971,19 @@ int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr, int ret; id_priv = container_of(id, struct rdma_id_private, id); - memcpy(cma_dst_addr(id_priv), dst_addr, rdma_addr_size(dst_addr)); if (id_priv->state == RDMA_CM_IDLE) { ret = cma_bind_addr(id, src_addr, dst_addr); - if (ret) { - memset(cma_dst_addr(id_priv), 0, rdma_addr_size(dst_addr)); + if (ret) return ret; - } } - if (cma_family(id_priv) != dst_addr->sa_family) { - memset(cma_dst_addr(id_priv), 0, rdma_addr_size(dst_addr)); + if (cma_family(id_priv) != dst_addr->sa_family) return -EINVAL; - } - if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_ADDR_QUERY)) { - memset(cma_dst_addr(id_priv), 0, rdma_addr_size(dst_addr)); + if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_ADDR_QUERY)) return -EINVAL; - } + memcpy(cma_dst_addr(id_priv), dst_addr, rdma_addr_size(dst_addr)); atomic_inc(&id_priv->refcount); if (cma_any_addr(dst_addr)) { ret = cma_resolve_loopback(id_priv); |