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-rw-r--r--drivers/s390/cio/css.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 08f6e7b6c999..5d83dd471461 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -13,6 +13,7 @@
13#include <linux/slab.h> 13#include <linux/slab.h>
14#include <linux/errno.h> 14#include <linux/errno.h>
15#include <linux/list.h> 15#include <linux/list.h>
16#include <linux/reboot.h>
16 17
17#include "css.h" 18#include "css.h"
18#include "cio.h" 19#include "cio.h"
@@ -632,6 +633,29 @@ static int __init setup_css(int nr)
632 return 0; 633 return 0;
633} 634}
634 635
636static int css_reboot_event(struct notifier_block *this,
637 unsigned long event,
638 void *ptr)
639{
640 int ret, i;
641
642 ret = NOTIFY_DONE;
643 for (i = 0; i <= __MAX_CSSID; i++) {
644 struct channel_subsystem *css;
645
646 css = channel_subsystems[i];
647 if (css->cm_enabled)
648 if (chsc_secm(css, 0))
649 ret = NOTIFY_BAD;
650 }
651
652 return ret;
653}
654
655static struct notifier_block css_reboot_notifier = {
656 .notifier_call = css_reboot_event,
657};
658
635/* 659/*
636 * Now that the driver core is running, we can setup our channel subsystem. 660 * Now that the driver core is running, we can setup our channel subsystem.
637 * The struct subchannel's are created during probing (except for the 661 * The struct subchannel's are created during probing (except for the
@@ -697,12 +721,17 @@ init_channel_subsystem (void)
697 if (ret) 721 if (ret)
698 goto out_file; 722 goto out_file;
699 } 723 }
724 ret = register_reboot_notifier(&css_reboot_notifier);
725 if (ret)
726 goto out_pseudo;
700 css_init_done = 1; 727 css_init_done = 1;
701 728
702 ctl_set_bit(6, 28); 729 ctl_set_bit(6, 28);
703 730
704 for_each_subchannel(__init_channel_subsystem, NULL); 731 for_each_subchannel(__init_channel_subsystem, NULL);
705 return 0; 732 return 0;
733out_pseudo:
734 device_unregister(&channel_subsystems[i]->pseudo_subchannel->dev);
706out_file: 735out_file:
707 device_remove_file(&channel_subsystems[i]->device, 736 device_remove_file(&channel_subsystems[i]->device,
708 &dev_attr_cm_enable); 737 &dev_attr_cm_enable);