src/patches/suse-2.6.27.39/patches.arch/s390-15-12-zfcp-wka-work.patch

   1 From: Gerald Schaefer <geraldsc@de.ibm.com>
   2 Subject: zfcp: Cancel WKA port work on adapter dequeue
   3 References: bnc#518291,LTC#54988
   4
   5 Symptom:     Oops when enabling / disabling lots of FCP subchannels
   6              while setting the chpid off / on.
   7 Problem:     The delayed_work for the directory server wka port is
   8              being executed after the adapter struct has been removed.
   9 Solution:    Before removing the adapter struct make sure that the
  10              delayed_work is not running.
  11
  12 Acked-by: John Jolly <jjolly@suse.de>
  13 ---
  14  drivers/s390/scsi/zfcp_aux.c |    1 +
  15  1 file changed, 1 insertion(+)
  16
  17 --- a/drivers/s390/scsi/zfcp_aux.c
  18 +++ b/drivers/s390/scsi/zfcp_aux.c
  19 @@ -552,6 +552,7 @@ void zfcp_adapter_dequeue(struct zfcp_ad
  20
  21         cancel_work_sync(&adapter->scan_work);
  22         cancel_work_sync(&adapter->stat_work);
  23 +       zfcp_fc_wka_port_force_offline(&adapter->nsp);
  24         zfcp_adapter_scsi_unregister(adapter);
  25         sysfs_remove_group(&adapter->ccw_device->dev.kobj,
  26                            &zfcp_sysfs_adapter_attrs);