[Intel-wired-lan] [PATCH 16/61] 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: Tejun Heo <tj at kernel.org>; David Vernet <void at manifault.com>;
> Andrea Righi <arighi at nvidia.com>; Changwoo Min <changwoo at igalia.com>;
> Ingo Molnar <mingo at redhat.com>; Peter Zijlstra <peterz at infradead.org>;
> Juri Lelli <juri.lelli at redhat.com>; Vincent Guittot
> <vincent.guittot at linaro.org>; Dietmar Eggemann
> <dietmar.eggemann at arm.com>; Steven Rostedt <rostedt at goodmis.org>; Ben
> Segall <bsegall at google.com>; Mel Gorman <mgorman at suse.de>; Valentin
> Schneider <vschneid at redhat.com>
> Subject: [Intel-wired-lan] [PATCH 16/61] 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: Tejun Heo <tj at kernel.org>
> To: David Vernet <void at manifault.com>
> To: Andrea Righi <arighi at nvidia.com>
> To: Changwoo Min <changwoo at igalia.com>
> To: Ingo Molnar <mingo at redhat.com>
> To: Peter Zijlstra <peterz at infradead.org>
> To: Juri Lelli <juri.lelli at redhat.com>
> To: Vincent Guittot <vincent.guittot at linaro.org>
> To: Dietmar Eggemann <dietmar.eggemann at arm.com>
> To: Steven Rostedt <rostedt at goodmis.org>
> To: Ben Segall <bsegall at google.com>
> To: Mel Gorman <mgorman at suse.de>
> To: Valentin Schneider <vschneid at redhat.com>
> Cc: sched-ext at lists.linux.dev
> Cc: linux-kernel at vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss at avm.de>
> ---
>  kernel/sched/ext.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index
> 1594987d637b09e586ae788b7f2e6336332d605a..cfa869bd7de5406a5ca094992ab0
> 4c62b0e92fd0 100644
> --- a/kernel/sched/ext.c
> +++ b/kernel/sched/ext.c
> @@ -3688,7 +3688,7 @@ static void scx_sched_free_rcu_work(struct
> work_struct *work)
>  	do {
>  		rhashtable_walk_start(&rht_iter);
> 
> -		while ((dsq = rhashtable_walk_next(&rht_iter)) &&
> !IS_ERR(dsq))
> +		while (!IS_ERR_OR_NULL((dsq =
> rhashtable_walk_next(&rht_iter))))
>  			destroy_dsq(sch, dsq->id);
> 
>  		rhashtable_walk_stop(&rht_iter);
> 
> --
> 2.43.0

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov at intel.com>