[PATCH 2/5] netfilter: nf_conntrack: checking for IS_ERR() instead of NULL

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From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

We recently changed this from nf_conntrack_alloc() to nf_ct_tmpl_alloc()
so the error handling needs to changed to check for NULL instead of
IS_ERR().

Fixes: 0838aa7fcfcd ('netfilter: fix netns dependencies with conntrack templates')
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
---
 net/netfilter/nf_synproxy_core.c |    4 +---
 net/netfilter/xt_CT.c            |    5 +++--
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c
index 71f1e9f..d7f1685 100644
--- a/net/netfilter/nf_synproxy_core.c
+++ b/net/netfilter/nf_synproxy_core.c
@@ -353,10 +353,8 @@ static int __net_init synproxy_net_init(struct net *net)
 	int err = -ENOMEM;
 
 	ct = nf_ct_tmpl_alloc(net, 0, GFP_KERNEL);
-	if (IS_ERR(ct)) {
-		err = PTR_ERR(ct);
+	if (!ct)
 		goto err1;
-	}
 
 	if (!nfct_seqadj_ext_add(ct))
 		goto err2;
diff --git a/net/netfilter/xt_CT.c b/net/netfilter/xt_CT.c
index c663003..43ddeee 100644
--- a/net/netfilter/xt_CT.c
+++ b/net/netfilter/xt_CT.c
@@ -202,9 +202,10 @@ static int xt_ct_tg_check(const struct xt_tgchk_param *par,
 		goto err1;
 
 	ct = nf_ct_tmpl_alloc(par->net, info->zone, GFP_KERNEL);
-	ret = PTR_ERR(ct);
-	if (IS_ERR(ct))
+	if (!ct) {
+		ret = -ENOMEM;
 		goto err2;
+	}
 
 	ret = 0;
 	if ((info->ct_events || info->exp_events) &&
-- 
1.7.10.4

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