[XFRM]: fix incorrect xfrm_policy_afinfo_lock use

[mirror_ubuntu-zesty-kernel.git] / net / xfrm / xfrm_policy.c

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index e5b0afc94f1eeeb04091102d9995cfe01e7e5397..b469c8b54613354a495db0fc4996aa5916e53829 100644 (file)
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1251,7 +1251,7 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
                return -EINVAL;
        if (unlikely(afinfo->family >= NPROTO))
                return -EAFNOSUPPORT;
-       write_lock(&xfrm_policy_afinfo_lock);
+       write_lock_bh(&xfrm_policy_afinfo_lock);
        if (unlikely(xfrm_policy_afinfo[afinfo->family] != NULL))
                err = -ENOBUFS;
        else {
@@ -1268,7 +1268,7 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
                        afinfo->garbage_collect = __xfrm_garbage_collect;
                xfrm_policy_afinfo[afinfo->family] = afinfo;
        }
-       write_unlock(&xfrm_policy_afinfo_lock);
+       write_unlock_bh(&xfrm_policy_afinfo_lock);
        return err;
 }
 EXPORT_SYMBOL(xfrm_policy_register_afinfo);
@@ -1280,7 +1280,7 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
                return -EINVAL;
        if (unlikely(afinfo->family >= NPROTO))
                return -EAFNOSUPPORT;
-       write_lock(&xfrm_policy_afinfo_lock);
+       write_lock_bh(&xfrm_policy_afinfo_lock);
        if (likely(xfrm_policy_afinfo[afinfo->family] != NULL)) {
                if (unlikely(xfrm_policy_afinfo[afinfo->family] != afinfo))
                        err = -EINVAL;
@@ -1294,7 +1294,7 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
                        afinfo->garbage_collect = NULL;
                }
        }
-       write_unlock(&xfrm_policy_afinfo_lock);
+       write_unlock_bh(&xfrm_policy_afinfo_lock);
        return err;
 }
 EXPORT_SYMBOL(xfrm_policy_unregister_afinfo);