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path: root/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
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Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_vlan.c')
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_vlan.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 4c57f329dd50..e3bf00d8cd25 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -61,7 +61,8 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
ppriv = netdev_priv(pdev);
- rtnl_lock();
+ if (!rtnl_trylock())
+ return restart_syscall();
mutex_lock(&ppriv->vlan_mutex);
/*
@@ -167,7 +168,8 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
ppriv = netdev_priv(pdev);
- rtnl_lock();
+ if (!rtnl_trylock())
+ return restart_syscall();
mutex_lock(&ppriv->vlan_mutex);
list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
if (priv->pkey == pkey) {
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