RE: [Intel-wired-lan] [PATCH 16/61] sched: Prefer IS_ERR_OR_NULL over manual NULL check

-----Original Message-----
From: Intel-wired-lan <redacted> On Behalf
Of Philipp Hahn
Sent: Tuesday, March 10, 2026 12:49 PM
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[off-list ref]
Cc: Tejun Heo <tj@kernel.org>; David Vernet <void@manifault.com>;
Andrea Righi [off-list ref]; Changwoo Min [off-list ref];
Ingo Molnar [off-list ref]; Peter Zijlstra [off-list ref];
Juri Lelli [off-list ref]; Vincent Guittot
[off-list ref]; Dietmar Eggemann
[off-list ref]; Steven Rostedt [off-list ref]; Ben
Segall [off-list ref]; Mel Gorman [off-list ref]; Valentin
Schneider [off-list ref]
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@kernel.org>
To: David Vernet <void@manifault.com>
To: Andrea Righi <arighi@nvidia.com>
To: Changwoo Min <changwoo@igalia.com>
To: Ingo Molnar <mingo@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
To: Juri Lelli <juri.lelli@redhat.com>
To: Vincent Guittot <vincent.guittot@linaro.org>
To: Dietmar Eggemann <dietmar.eggemann@arm.com>
To: Steven Rostedt <rostedt@goodmis.org>
To: Ben Segall <bsegall@google.com>
To: Mel Gorman <mgorman@suse.de>
To: Valentin Schneider <vschneid@redhat.com>
Cc: sched-ext@lists.linux.dev
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <redacted>
---
 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