Commit 4133fc09 authored by Ying Xue's avatar Ying Xue Committed by David S. Miller

rocker: fix a neigh entry leak issue

Once we get a neighbour through looking up arp cache or creating a
new one in rocker_port_ipv4_resolve(), the neighbour's refcount is
already taken. But as we don't put the refcount again after it's
used, this makes the neighbour entry leaked.
Suggested-by: default avatarEric Dumazet <edumazet@google.com>
Acked-by: default avatarJiri Pirko <jiri@resnulli.us>
Acked-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarYing Xue <ying.xue@windriver.com>
Acked-by: default avatarJiri Pirko <jiri@resnulli.us>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 54eac850
...@@ -3037,10 +3037,11 @@ static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port, ...@@ -3037,10 +3037,11 @@ static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port,
struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr); struct neighbour *n = __ipv4_neigh_lookup(dev, (__force u32)ip_addr);
int err = 0; int err = 0;
if (!n) if (!n) {
n = neigh_create(&arp_tbl, &ip_addr, dev); n = neigh_create(&arp_tbl, &ip_addr, dev);
if (!n) if (IS_ERR(n))
return -ENOMEM; return IS_ERR(n);
}
/* If the neigh is already resolved, then go ahead and /* If the neigh is already resolved, then go ahead and
* install the entry, otherwise start the ARP process to * install the entry, otherwise start the ARP process to
...@@ -3053,6 +3054,7 @@ static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port, ...@@ -3053,6 +3054,7 @@ static int rocker_port_ipv4_resolve(struct rocker_port *rocker_port,
else else
neigh_event_send(n, NULL); neigh_event_send(n, NULL);
neigh_release(n);
return err; return err;
} }
......
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