IB/mlx4: Fix leaks in __mlx4_ib_modify_qp
Temporarily allocated struct mlx4_qp_context *context is leaked by
several error paths. The patch takes advantage of the return value
'err' being preinitialized to -EINVAL.
Spotted by Coverity (CID 1768).
Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index b5a24fb..5456bc4 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -742,7 +742,7 @@
if (attr->path_mtu < IB_MTU_256 || attr->path_mtu > IB_MTU_4096) {
printk(KERN_ERR "path MTU (%u) is invalid\n",
attr->path_mtu);
- return -EINVAL;
+ goto out;
}
context->mtu_msgmax = (attr->path_mtu << 5) | 31;
}
@@ -781,10 +781,8 @@
if (attr_mask & IB_QP_AV) {
if (mlx4_set_path(dev, &attr->ah_attr, &context->pri_path,
- attr_mask & IB_QP_PORT ? attr->port_num : qp->port)) {
- err = -EINVAL;
+ attr_mask & IB_QP_PORT ? attr->port_num : qp->port))
goto out;
- }
optpar |= (MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH |
MLX4_QP_OPTPAR_SCHED_QUEUE);
@@ -798,15 +796,15 @@
if (attr_mask & IB_QP_ALT_PATH) {
if (attr->alt_port_num == 0 ||
attr->alt_port_num > dev->dev->caps.num_ports)
- return -EINVAL;
+ goto out;
if (attr->alt_pkey_index >=
dev->dev->caps.pkey_table_len[attr->alt_port_num])
- return -EINVAL;
+ goto out;
if (mlx4_set_path(dev, &attr->alt_ah_attr, &context->alt_path,
attr->alt_port_num))
- return -EINVAL;
+ goto out;
context->alt_path.pkey_index = attr->alt_pkey_index;
context->alt_path.ackto = attr->alt_timeout << 3;