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s390: convert cpu notifier to return encapsulate errno value 

By the previous modification, the cpu notifier can return encapsulate
errno value.  This converts the cpu notifiers for s390.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2010-05-26 14:43:34 -07:00 committed by Linus Torvalds
parent 1dee31f74f
commit d882ba699d
1 changed files with 3 additions and 3 deletions
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6
arch/s390/kernel/smp.c
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@ -944,21 +944,21 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self,
struct cpu *c = &per_cpu(cpu_devices, cpu);
struct sys_device *s = &c->sysdev;
struct s390_idle_data *idle;
int err = 0;
switch (action) {
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
idle = &per_cpu(s390_idle, cpu);
memset(idle, 0, sizeof(struct s390_idle_data));
if (sysfs_create_group(&s->kobj, &cpu_online_attr_group))
return NOTIFY_BAD;
err = sysfs_create_group(&s->kobj, &cpu_online_attr_group);
break;
case CPU_DEAD:
case CPU_DEAD_FROZEN:
sysfs_remove_group(&s->kobj, &cpu_online_attr_group);
break;
}
return NOTIFY_OK;
return notifier_from_errno(err);
}
static struct notifier_block __cpuinitdata smp_cpu_nb = {