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IB/mlx5: Fix memory leak in mlx5_ib_create_flow

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In case memory resources for *ucmd* were allocated, release them
before return.

Addresses-Coverity-ID: 1469857 ("Resource leak")
Fixes: 3b3233fbf0 ("IB/mlx5: Add flow counters binding support")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Gustavo A. R. Silva 2018-06-07 14:19:15 -05:00 committed by Jason Gunthorpe
parent 828d810550
commit 299eafee39
1 changed files with 19 additions and 13 deletions
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32
drivers/infiniband/hw/mlx5/main.c
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@ -3546,29 +3546,35 @@ static struct ib_flow *mlx5_ib_create_flow(struct ib_qp *qp,
return ERR_PTR(-ENOMEM);
err = ib_copy_from_udata(ucmd, udata, required_ucmd_sz);
if (err) {
kfree(ucmd);
return ERR_PTR(err);
}
if (err)
goto free_ucmd;
}
if (flow_attr->priority > MLX5_IB_FLOW_LAST_PRIO)
return ERR_PTR(-ENOMEM);
if (flow_attr->priority > MLX5_IB_FLOW_LAST_PRIO) {
err = -ENOMEM;
goto free_ucmd;
}
if (domain != IB_FLOW_DOMAIN_USER ||
flow_attr->port > dev->num_ports ||
(flow_attr->flags & ~(IB_FLOW_ATTR_FLAGS_DONT_TRAP |
IB_FLOW_ATTR_FLAGS_EGRESS)))
return ERR_PTR(-EINVAL);
IB_FLOW_ATTR_FLAGS_EGRESS))) {
err = -EINVAL;
goto free_ucmd;
}
if (is_egress &&
(flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT ||
flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT))
return ERR_PTR(-EINVAL);
flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT)) {
err = -EINVAL;
goto free_ucmd;
}
dst = kzalloc(sizeof(*dst), GFP_KERNEL);
if (!dst)
return ERR_PTR(-ENOMEM);
if (!dst) {
err = -ENOMEM;
goto free_ucmd;
}
mutex_lock(&dev->flow_db->lock);
@ -3637,8 +3643,8 @@ destroy_ft:
unlock:
mutex_unlock(&dev->flow_db->lock);
kfree(dst);
free_ucmd:
kfree(ucmd);
kfree(handler);
return ERR_PTR(err);
}