RE: [Intel-wired-lan] [PATCH 28/61] net/sched: Prefer IS_ERR_OR_NULL over manual NULL check

> -----Original Message-----
> From: Intel-wired-lan <[email protected]> On Behalf
> Of Philipp Hahn
> Sent: Tuesday, March 10, 2026 12:49 PM
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> Cc: Hadi Salim, Jamal <[email protected]>; Jiri Pirko
> <[email protected]>; David S. Miller <[email protected]>; Eric
> Dumazet <[email protected]>; Jakub Kicinski <[email protected]>; Paolo
> Abeni <[email protected]>; Simon Horman <[email protected]>
> Subject: [Intel-wired-lan] [PATCH 28/61] net/sched: Prefer
> IS_ERR_OR_NULL over manual NULL check
> 
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
> 
> Change generated with coccinelle.
> 
> To: Jamal Hadi Salim <[email protected]>
> To: Jiri Pirko <[email protected]>
> To: "David S. Miller" <[email protected]>
> To: Eric Dumazet <[email protected]>
> To: Jakub Kicinski <[email protected]>
> To: Paolo Abeni <[email protected]>
> To: Simon Horman <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Signed-off-by: Philipp Hahn <[email protected]>
> ---
>  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..4208225e7a4acaf0c331096ebf94
> 1f68cc2ed992 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


Reviewed-by: Aleksandr Loktionov <[email protected]>