Commit 1b0332a4 authored by Yu-Chun Lin's avatar Yu-Chun Lin Committed by Frederic Weisbecker
Browse files

kthread: Fix return value on kzalloc() failure in kthread_affine_preferred() 



kthread_affine_preferred() incorrectly returns 0 instead of -ENOMEM
when kzalloc() fails. Return 'ret' to ensure the correct error code is
propagated.

Fixes: 4d13f430 ("kthread: Implement preferred affinity")
Reported-by: default avatarkernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501301528.t0cZVbnq-lkp@intel.com/


Signed-off-by: default avatarYu-Chun Lin <eleanor15x@gmail.com>
Signed-off-by: default avatarFrederic Weisbecker <frederic@kernel.org>
parent 2014c95a

kernel/kthread.c

+2 −2
Original line number Diff line number Diff line
@@ -859,7 +859,7 @@ int kthread_affine_preferred(struct task_struct *p, const struct cpumask *mask) 
	struct kthread *kthread = to_kthread(p);

	cpumask_var_t affinity;

	unsigned long flags;

	int ret;

	int ret = 0;



	if (!wait_task_inactive(p, TASK_UNINTERRUPTIBLE) || kthread->started) {

		WARN_ON(1);
@@ -892,7 +892,7 @@ int kthread_affine_preferred(struct task_struct *p, const struct cpumask *mask) 
out:

	free_cpumask_var(affinity);



	return 0;

	return ret;

}



/*