From: Steffen Maier <maier@linux.vnet.ibm.com>
Date: Wed, 10 Aug 2016 16:30:48 +0000 (+0200)
Subject: zfcp: restore: Dont use 0 to indicate invalid LUN in rec trace
X-Git-Tag: v3.16.40~293
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=dbd59605c367528a0be8f79bc1d142aec7ec754f;p=thirdparty%2Fkernel%2Fstable.git

zfcp: restore: Dont use 0 to indicate invalid LUN in rec trace

commit 0102a30a6ff60f4bb4c07358ca3b1f92254a6c25 upstream.

bring back
commit d21e9daa63e009ce5b87bbcaa6d11ce48e07bbbe
("[SCSI] zfcp: Dont use 0 to indicate invalid LUN in rec trace")
which was lost with
commit ae0904f60fab7cb20c48d32eefdd735e478b91fb
("[SCSI] zfcp: Redesign of the debug tracing for recovery actions.")

Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Fixes: ae0904f60fab ("[SCSI] zfcp: Redesign of the debug tracing for recovery actions.")
Reviewed-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index f56694bcd923a..e56ada3b5ae26 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -241,7 +241,8 @@ static void zfcp_dbf_set_common(struct zfcp_dbf_rec *rec,
 	if (sdev) {
 		rec->lun_status = atomic_read(&sdev_to_zfcp(sdev)->status);
 		rec->lun = zfcp_scsi_dev_lun(sdev);
-	}
+	} else
+		rec->lun = ZFCP_DBF_INVALID_LUN;
 }
 
 /**