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Subject[PATCH 2/2] net: ethernet: ti: cpsw: fix runtime_pm while add/kill vlan
Date
It's exclusive with normal behaviour but if try to set vlan to one of
the reserved values is made, the cpsw runtime pm is broken.

Fixes: commit a6c5d14f5136
("drivers: net: cpsw: ndev: fix accessing to suspended device")

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
---
drivers/net/ethernet/ti/cpsw.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 9edac671f276..3e34cb8ac1d3 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2086,14 +2086,16 @@ static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev,
int i;

for (i = 0; i < cpsw->data.slaves; i++) {
- if (vid == cpsw->slaves[i].port_vlan)
- return -EINVAL;
+ if (vid == cpsw->slaves[i].port_vlan) {
+ ret = -EINVAL;
+ goto err;
+ }
}
}

dev_info(priv->dev, "Adding vlanid %d to vlan filter\n", vid);
ret = cpsw_add_vlan_ale_entry(priv, vid);
-
+err:
pm_runtime_put(cpsw->dev);
return ret;
}
@@ -2119,7 +2121,7 @@ static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev,

for (i = 0; i < cpsw->data.slaves; i++) {
if (vid == cpsw->slaves[i].port_vlan)
- return -EINVAL;
+ goto err;
}
}

@@ -2129,6 +2131,7 @@ static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev,
HOST_PORT_NUM, ALE_VLAN, vid);
ret |= cpsw_ale_del_mcast(cpsw->ale, priv->ndev->broadcast,
0, ALE_VLAN, vid);
+err:
pm_runtime_put(cpsw->dev);
return ret;
}
--
2.17.1
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