src/patches/suse-2.6.27.31/patches.arch/s390-12-16-zfcp_reference_counting_for_cfdc_requests.patch

   1 From: Gerald Schaefer <geraldsc@de.ibm.com>
   2 Subject: zfcp: Fix reference counting for cfdc requests
   3 References: bnc#487755,LTC#52849
   4
   5 Symptom:     Setting adapter off-line will hang.
   6 Problem:     The adapter reference count can get negative.
   7 Solution:    Increase the reference count when issuing
   8              cfdc requests.
   9
  10 Acked-by: John Jolly <jjolly@suse.de>
  11 ---
  12  drivers/s390/scsi/zfcp_cfdc.c |    1 +
  13  1 file changed, 1 insertion(+)
  14
  15 Index: linux-sles11/drivers/s390/scsi/zfcp_cfdc.c
  16 ===================================================================
  17 --- linux-sles11.orig/drivers/s390/scsi/zfcp_cfdc.c
  18 +++ linux-sles11/drivers/s390/scsi/zfcp_cfdc.c
  19 @@ -207,6 +207,7 @@ static long zfcp_cfdc_dev_ioctl(struct f
  20                 retval = -ENXIO;
  21                 goto free_buffer;
  22         }
  23 +       zfcp_adapter_get(adapter);
  24
  25         retval = zfcp_cfdc_sg_setup(data->command, fsf_cfdc->sg,
  26                                     data_user->control_file);