diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index deed355422f4e..1ade72bfae0f0 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -191,6 +191,8 @@ struct ipmi_user { struct work_struct remove_work; }; +struct workqueue_struct *remove_work_wq; + static struct ipmi_user *acquire_ipmi_user(struct ipmi_user *user, int *index) __acquires(user->release_barrier) { @@ -1297,7 +1299,7 @@ static void free_user(struct kref *ref) struct ipmi_user *user = container_of(ref, struct ipmi_user, refcount); /* SRCU cleanup must happen in task context. */ - schedule_work(&user->remove_work); + queue_work(remove_work_wq, &user->remove_work); } static void _ipmi_destroy_user(struct ipmi_user *user) @@ -5383,6 +5385,13 @@ static int ipmi_init_msghandler(void) atomic_notifier_chain_register(&panic_notifier_list, &panic_block); + remove_work_wq = create_singlethread_workqueue("ipmi-msghandler-remove-wq"); + if (!remove_work_wq) { + pr_err("unable to create ipmi-msghandler-remove-wq workqueue"); + rv = -ENOMEM; + goto out; + } + initialized = true; out: @@ -5408,6 +5417,8 @@ static void __exit cleanup_ipmi(void) int count; if (initialized) { + destroy_workqueue(remove_work_wq); + atomic_notifier_chain_unregister(&panic_notifier_list, &panic_block);