diff options
| author | Cornelia Huck <cornelia.huck@de.ibm.com> | 2006-07-12 16:39:50 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-07-12 16:39:50 +0200 |
| commit | 6ab4879a0d074c938fd17dba141dce042fc17bee (patch) | |
| tree | 62e413692d4c55ae322c3201c36ded4808806cb5 /drivers/s390/cio/device.c | |
| parent | 63f4f9e1281ea9b9a2304bd13d657ba9d401c9a7 (diff) | |
[S390] subchannel register/unregister mutex.
Add a reg_mutex to prevent unregistering a subchannel before it has been
registered. Since 2.6.17, we've seen oopses in kslowcrw when a device is
found to be not operational during sense id when doing initial device
recognition; it is not clear yet why that particular problem was not (yet)
observed with earlier kernels...
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/device.c')
| -rw-r--r-- | drivers/s390/cio/device.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 67f0de6aed3..9db09870b2a 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -280,7 +280,7 @@ ccw_device_remove_disconnected(struct ccw_device *cdev) * 'throw away device'. */ sch = to_subchannel(cdev->dev.parent); - device_unregister(&sch->dev); + css_sch_device_unregister(sch); /* Reset intparm to zeroes. */ sch->schib.pmcw.intparm = 0; cio_modify(sch); @@ -625,7 +625,7 @@ ccw_device_do_unreg_rereg(void *data) other_sch->schib.pmcw.intparm = 0; cio_modify(other_sch); } - device_unregister(&other_sch->dev); + css_sch_device_unregister(other_sch); } } /* Update ssd info here. */ @@ -709,7 +709,7 @@ ccw_device_call_sch_unregister(void *data) struct subchannel *sch; sch = to_subchannel(cdev->dev.parent); - device_unregister(&sch->dev); + css_sch_device_unregister(sch); /* Reset intparm to zeroes. */ sch->schib.pmcw.intparm = 0; cio_modify(sch); |