[PATCH 28/61] net/sched: Prefer IS_ERR_OR_NULL over manual NULL check

[Philipp Hahn]

Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.

Change generated with coccinelle.

To: Jamal Hadi Salim <jhs at mojatatu.com>
To: Jiri Pirko <jiri at resnulli.us>
To: "David S. Miller" <davem at davemloft.net>
To: Eric Dumazet <edumazet at google.com>
To: Jakub Kicinski <kuba at kernel.org>
To: Paolo Abeni <pabeni at redhat.com>
To: Simon Horman <horms at kernel.org>
Cc: netdev at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss at avm.de>
---
 net/sched/cls_api.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 4829c27446e3369ad2ae9b3fcb285eca47d59933..4208225e7a4acaf0c331096ebf941f68cc2ed992 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -2444,7 +2444,7 @@ static int tc_new_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
 		tcf_chain_tp_delete_empty(chain, tp, rtnl_held, NULL);
 errout_tp:
 	if (chain) {
-		if (tp && !IS_ERR(tp))
+		if (!IS_ERR_OR_NULL(tp))
 			tcf_proto_put(tp, rtnl_held, NULL);
 		if (!tp_created)
 			tcf_chain_put(chain);
@@ -2612,7 +2612,7 @@ static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
 
 errout:
 	if (chain) {
-		if (tp && !IS_ERR(tp))
+		if (!IS_ERR_OR_NULL(tp))
 			tcf_proto_put(tp, rtnl_held, NULL);
 		tcf_chain_put(chain);
 	}
@@ -2741,7 +2741,7 @@ static int tc_get_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
 	tfilter_put(tp, fh);
 errout:
 	if (chain) {
-		if (tp && !IS_ERR(tp))
+		if (!IS_ERR_OR_NULL(tp))
 			tcf_proto_put(tp, rtnl_held, NULL);
 		tcf_chain_put(chain);
 	}

-- 
2.43.0