[SCSI] zfcp: fix compile warning

Get rid of this one:

drivers/s390/scsi/zfcp_erp.c: In function 'zfcp_erp_thread':
drivers/s390/scsi/zfcp_erp.c:1400: warning: ignoring return value of
'down_interruptible', declared with attribute warn_unused_result

zfcp_erp_thread is a kernel thread which can't receive any signals.
So introduce a dummy variable and get rid of the warning.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 4ed4950d994b..495a4a33e37d 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -1385,6 +1385,7 @@ static int zfcp_erp_thread(void *data)
         struct list_head *next;
         struct zfcp_erp_action *act;
         unsigned long flags;
+        int ignore;
 
         daemonize("zfcperp%s", dev_name(&adapter->ccw_device->dev));
         /* Block all signals */
@@ -1407,7 +1408,7 @@ static int zfcp_erp_thread(void *data)
                 }
 
                 zfcp_rec_dbf_event_thread_lock(4, adapter);
-                down_interruptible(&adapter->erp_ready_sem);
+                ignore = down_interruptible(&adapter->erp_ready_sem);
                 zfcp_rec_dbf_event_thread_lock(5, adapter);
         }