From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Wed, 24 Aug 2016 11:08:40 +0000 (+0200)
Subject: xfrm: Fix xfrm_policy_lock imbalance
X-Git-Tag: Ubuntu-4.10.0-19.21~2496^2~261^2~1
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=4141b36ab16d7a66b4cf712f2d21eba61c5927e5;p=mirror_ubuntu-artful-kernel.git

xfrm: Fix xfrm_policy_lock imbalance

An earlier patch accidentally replaced a write_lock_bh
with a spin_unlock_bh. Fix this by using spin_lock_bh
instead.

Fixes: 9d0380df6217 ("xfrm: policy: convert policy_lock to spinlock")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index dd01fd2e55fa..f7ce6265961a 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -979,7 +979,7 @@ int xfrm_policy_flush(struct net *net, u8 type, bool task_valid)
 
 			xfrm_policy_kill(pol);
 
-			spin_unlock_bh(&net->xfrm.xfrm_policy_lock);
+			spin_lock_bh(&net->xfrm.xfrm_policy_lock);
 			goto again1;
 		}