From 7525c85be0e6d18596390e7e2b17a206cd9777f6 Mon Sep 17 00:00:00 2001
From: Roland Dreier <roland@purestorage.com>
Date: Fri, 27 Jan 2012 09:54:30 -0800
Subject: [PATCH] RDMA/nes: Add missing rcu_read_unlock() in
nes_addr_resolve_neigh()
Make sure all exit paths from this function unlock everything.
Reported-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
drivers/infiniband/hw/nes/nes_cm.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 183f7ab120db5..271279cccad82 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -1363,8 +1363,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
if (!memcmp(nesadapter->arp_table[arpindex].mac_addr,
neigh->ha, ETH_ALEN)) {
/* Mac address same as in nes_arp_table */
- ip_rt_put(rt);
- return rc;
+ goto out;
}
nes_manage_arp_cache(nesvnic->netdev,
@@ -1380,6 +1379,8 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
neigh_event_send(neigh, NULL);
}
}
+
+out:
rcu_read_unlock();
ip_rt_put(rt);
return rc;
--
2.30.2