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

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces at osuosl.org> On Behalf
> Of Philipp Hahn
> Sent: Tuesday, March 10, 2026 12:49 PM
> To: amd-gfx at lists.freedesktop.org; apparmor at lists.ubuntu.com;
> bpf at vger.kernel.org; ceph-devel at vger.kernel.org; cocci at inria.fr; dm-
> devel at lists.linux.dev; dri-devel at lists.freedesktop.org;
> gfs2 at lists.linux.dev; intel-gfx at lists.freedesktop.org; intel-wired-
> lan at lists.osuosl.org; iommu at lists.linux.dev; kvm at vger.kernel.org;
> linux-arm-kernel at lists.infradead.org; linux-block at vger.kernel.org;
> linux-bluetooth at vger.kernel.org; linux-btrfs at vger.kernel.org; linux-
> cifs at vger.kernel.org; linux-clk at vger.kernel.org; linux-
> erofs at lists.ozlabs.org; linux-ext4 at vger.kernel.org; linux-
> fsdevel at vger.kernel.org; linux-gpio at vger.kernel.org; linux-
> hyperv at vger.kernel.org; linux-input at vger.kernel.org; linux-
> kernel at vger.kernel.org; linux-leds at vger.kernel.org; linux-
> media at vger.kernel.org; linux-mips at vger.kernel.org; linux-mm at kvack.org;
> linux-modules at vger.kernel.org; linux-mtd at lists.infradead.org; linux-
> nfs at vger.kernel.org; linux-omap at vger.kernel.org; linux-
> phy at lists.infradead.org; linux-pm at vger.kernel.org; linux-
> rockchip at lists.infradead.org; linux-s390 at vger.kernel.org; linux-
> scsi at vger.kernel.org; linux-sctp at vger.kernel.org; linux-security-
> module at vger.kernel.org; linux-sh at vger.kernel.org; linux-
> sound at vger.kernel.org; linux-stm32 at st-md-mailman.stormreply.com;
> linux-trace-kernel at vger.kernel.org; linux-usb at vger.kernel.org; linux-
> wireless at vger.kernel.org; netdev at vger.kernel.org;
> ntfs3 at lists.linux.dev; samba-technical at lists.samba.org; sched-
> ext at lists.linux.dev; target-devel at vger.kernel.org; tipc-
> discussion at lists.sourceforge.net; v9fs at lists.linux.dev; Philipp Hahn
> <phahn-oss at avm.de>
> Cc: Hadi Salim, Jamal <jhs at mojatatu.com>; Jiri Pirko
> <jiri at resnulli.us>; David S. Miller <davem at davemloft.net>; Eric
> Dumazet <edumazet at google.com>; Jakub Kicinski <kuba at kernel.org>; Paolo
> Abeni <pabeni at redhat.com>; Simon Horman <horms at kernel.org>
> 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 <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..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 <aleksandr.loktionov at intel.com>