[SCSI] zfcp: Replace config semaphore with mutex

The config semaphore is only used as a mutex, so replace it with a
simple mutex.

Reviewed-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>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 99830758e873..cc98eead2c3c 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -604,8 +604,7 @@ struct zfcp_data {
         rwlock_t                config_lock;        /* serialises changes
                                                        to adapter/port/unit
                                                        lists */
-        struct semaphore        config_sema;        /* serialises configuration
-                                                       changes */
+        struct mutex            config_mutex;
         struct kmem_cache       *gpn_ft_cache;
         struct kmem_cache       *qtcb_cache;
         struct kmem_cache       *sr_buffer_cache;