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RDMA/core: Check for error instead of success in alloc MR function 

The common kernel pattern is to check for error, not success.  Flip the if
statement accordingly and keep the main flow unindented.

Link: https://lore.kernel.org/r/20200706120343.10816-2-galpress@amazon.com
Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Gal Pressman 2020-07-06 15:03:41 +03:00 committed by Jason Gunthorpe
parent c367124e6c
commit c5f42b2105
1 changed files with 13 additions and 12 deletions
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25
drivers/infiniband/core/verbs.c
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@ -2133,18 +2133,19 @@ struct ib_mr *ib_alloc_mr_user(struct ib_pd *pd, enum ib_mr_type mr_type,
}
mr = pd->device->ops.alloc_mr(pd, mr_type, max_num_sg, udata);
if (!IS_ERR(mr)) {
mr->device = pd->device;
mr->pd = pd;
mr->dm = NULL;
mr->uobject = NULL;
atomic_inc(&pd->usecnt);
mr->need_inval = false;
mr->res.type = RDMA_RESTRACK_MR;
rdma_restrack_kadd(&mr->res);
mr->type = mr_type;
mr->sig_attrs = NULL;
}
if (IS_ERR(mr))
goto out;
mr->device = pd->device;
mr->pd = pd;
mr->dm = NULL;
mr->uobject = NULL;
atomic_inc(&pd->usecnt);
mr->need_inval = false;
mr->res.type = RDMA_RESTRACK_MR;
rdma_restrack_kadd(&mr->res);
mr->type = mr_type;
mr->sig_attrs = NULL;
out:
trace_mr_alloc(pd, mr_type, max_num_sg, mr);