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authorDavid S. Miller <davem@davemloft.net>2010-12-26 22:37:05 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-26 22:37:05 -0800
commit17f7f4d9fcce8f1b75b5f735569309dee7665968 (patch)
tree14d7e49ca0053a0fcab3c33b5023bf3f90c5c08a /drivers/s390/cio/device.c
parent041110a439e21cd40709ead4ffbfa8034619ad77 (diff)
parentd7c1255a3a21e98bdc64df8ccf005a174d7e6289 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: net/ipv4/fib_frontend.c
Diffstat (limited to 'drivers/s390/cio/device.c')
-rw-r--r--drivers/s390/cio/device.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 2ff8a22d4257..e8391b89eff4 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1455,7 +1455,16 @@ static int io_subchannel_sch_event(struct subchannel *sch, int process)
break;
case IO_SCH_UNREG_ATTACH:
case IO_SCH_UNREG:
- if (cdev)
+ if (!cdev)
+ break;
+ if (cdev->private->state == DEV_STATE_SENSE_ID) {
+ /*
+ * Note: delayed work triggered by this event
+ * and repeated calls to sch_event are synchronized
+ * by the above check for work_pending(cdev).
+ */
+ dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
+ } else
ccw_device_set_notoper(cdev);
break;
case IO_SCH_NOP: