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Commit 2d7bf367 authored by Cornelia Huck's avatar Cornelia Huck Committed by David S. Miller
Browse files

iucv: Delay bus registration until core is ready. 



If we register the iucv bus after the infrastructure is ready,
userspace can start relying on it when it receives the uevent
for the bus.

Signed-off-by: default avatarCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarUrsula Braun <braunu@de.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9284d6c7

net/iucv/iucv.c

+9 −7
Original line number Diff line number Diff line
@@ -1608,13 +1608,10 @@ static int __init iucv_init(void) 
	rc = register_external_interrupt(0x4000, iucv_external_interrupt);

	if (rc)

		goto out;

	rc = bus_register(&iucv_bus);

	if (rc)

		goto out_int;

	iucv_root = s390_root_dev_register("iucv");

	if (IS_ERR(iucv_root)) {

		rc = PTR_ERR(iucv_root);

		goto out_bus;

		goto out_int;

	}



	for_each_online_cpu(cpu) {
@@ -1634,13 +1631,20 @@ static int __init iucv_init(void) 
			goto out_free;

		}

	}

	register_hotcpu_notifier(&iucv_cpu_notifier);

	rc = register_hotcpu_notifier(&iucv_cpu_notifier);

	if (rc)

		goto out_free;

	ASCEBC(iucv_error_no_listener, 16);

	ASCEBC(iucv_error_no_memory, 16);

	ASCEBC(iucv_error_pathid, 16);

	iucv_available = 1;

	rc = bus_register(&iucv_bus);

	if (rc)

		goto out_cpu;

	return 0;



out_cpu:

	unregister_hotcpu_notifier(&iucv_cpu_notifier);

out_free:

	for_each_possible_cpu(cpu) {

		kfree(iucv_param[cpu]);
@@ -1649,8 +1653,6 @@ static int __init iucv_init(void) 
		iucv_irq_data[cpu] = NULL;

	}

	s390_root_dev_unregister(iucv_root);

out_bus:

	bus_unregister(&iucv_bus);

out_int:

	unregister_external_interrupt(0x4000, iucv_external_interrupt);

out: