diff options
| author | Andrzej Hajda <a.hajda@samsung.com> | 2015-12-14 11:05:58 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-12-15 11:54:43 -0500 |
| commit | 2b2b31c845d3dec6f9960db92d0993ddfc2d2b7f (patch) | |
| tree | 0cbb3d3e54f22b961f737954f80a9f99766121e5 /drivers/net | |
| parent | f654861569872d10dcb79d9d7ca219b316f94ff0 (diff) | |
| download | linux-2b2b31c845d3dec6f9960db92d0993ddfc2d2b7f.tar.bz2 | |
net/mlx4_core: fix handling return value of mlx4_slave_convert_port
The function can return negative values, so its result should
be assigned to signed variable.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107
Fixes: fc48866f7 ('net/mlx4: Adapt code for N-Port VF')
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 6fec3e993d02..cad6c44df91c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -4306,9 +4306,10 @@ int mlx4_QP_FLOW_STEERING_ATTACH_wrapper(struct mlx4_dev *dev, int slave, return -EOPNOTSUPP; ctrl = (struct mlx4_net_trans_rule_hw_ctrl *)inbox->buf; - ctrl->port = mlx4_slave_convert_port(dev, slave, ctrl->port); - if (ctrl->port <= 0) + err = mlx4_slave_convert_port(dev, slave, ctrl->port); + if (err <= 0) return -EINVAL; + ctrl->port = err; qpn = be32_to_cpu(ctrl->qpn) & 0xffffff; err = get_res(dev, slave, qpn, RES_QP, &rqp); if (err) { |