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authorSwen Schillig <swen@vnet.ibm.com>2009-11-24 16:53:59 +0100
committerJames Bottomley <James.Bottomley@suse.de>2009-12-04 12:02:02 -0600
commitf3450c7b917201bb49d67032e9f60d5125675d6a (patch)
tree404b1c23490b0a5ba3d6cbbb14e64381a12a108a /drivers/s390/scsi/zfcp_dbf.c
parentecf0c7721b104c0ce9c8ca534c911f6310cf92a8 (diff)
downloadop-kernel-dev-f3450c7b917201bb49d67032e9f60d5125675d6a.zip
op-kernel-dev-f3450c7b917201bb49d67032e9f60d5125675d6a.tar.gz
[SCSI] zfcp: Replace local reference counting with common kref
Replace the local reference counting by already available mechanisms offered by kref. Where possible existing device structures were used, including the same functionality. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_dbf.c')
-rw-r--r--drivers/s390/scsi/zfcp_dbf.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 215b707..fe818cd 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -1067,6 +1067,8 @@ err_out:
*/
void zfcp_dbf_adapter_unregister(struct zfcp_dbf *dbf)
{
+ if (!dbf)
+ return;
debug_unregister(dbf->scsi);
debug_unregister(dbf->san);
debug_unregister(dbf->hba);
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