[Linux-kernel-mentees] [PATCH] fork.c: Use RCU_INIT_POINTER() instead of rcu_access_pointer()

madhuparnabhowmik10 at gmail.com madhuparnabhowmik10 at gmail.com
Mon Jan 27 17:58:21 UTC 2020


From: Madhuparna Bhowmik <madhuparnabhowmik10 at gmail.com>

Use RCU_INIT_POINTER() instead of rcu_access_pointer() in
copy_sighand().

Suggested-by: Oleg Nesterov <oleg at redhat.com>
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10 at gmail.com>
---
 kernel/fork.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/fork.c b/kernel/fork.c
index 2508a4f238a3..42b71d4a50cb 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1508,7 +1508,7 @@ static int copy_sighand(unsigned long clone_flags, struct task_struct *tsk)
 		return 0;
 	}
 	sig = kmem_cache_alloc(sighand_cachep, GFP_KERNEL);
-	rcu_assign_pointer(tsk->sighand, sig);
+	RCU_INIT_POINTER(tsk->sighand, sig);
 	if (!sig)
 		return -ENOMEM;
 
-- 
2.17.1



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