linux-kernel - [PATCH next] kthread: Fix a NULL vs IS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <64c234af-5141-4062-9170-2122c3edf088@stanley.mountain>
Date: Fri, 13 Dec 2024 17:25:02 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Frederic Weisbecker <frederic@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
	Vlastimil Babka <vbabka@...e.cz>, Chen Yu <yu.c.chen@...el.com>,
	Yafang Shao <laoar.shao@...il.com>,
	Mickaël Salaün <mic@...ikod.net>,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH next] kthread: Fix a NULL vs IS_ERR() bug

The kthread_create_worker_on_node() function returns error pointers,
never NULL.  Fix the check to match.

Fixes: e9853c812f86 ("treewide: Introduce kthread_run_worker[_on_cpu]()")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 kernel/kthread.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kthread.c b/kernel/kthread.c
index 83bf73d2355c..922f15762ec3 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -1124,7 +1124,7 @@ kthread_create_worker_on_cpu(int cpu, unsigned int flags,
 	struct kthread_worker *worker;
 
 	worker = kthread_create_worker_on_node(flags, cpu_to_node(cpu), namefmt, cpu);
-	if (worker)
+	if (!IS_ERR(worker))
 		kthread_bind(worker->task, cpu);
 
 	return worker;
-- 
2.45.2