[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>
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 82f148d..722f22d 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -613,7 +613,7 @@
return -E2BIG;
}
- down(&zfcp_data.config_sema);
+ mutex_lock(&zfcp_data.config_mutex);
/* first entry is the header */
for (x = 1; x < max_entries && !last; x++) {
@@ -647,7 +647,7 @@
zfcp_erp_wait(adapter);
list_for_each_entry_safe(port, tmp, &adapter->port_list_head, list)
zfcp_fc_validate_port(port);
- up(&zfcp_data.config_sema);
+ mutex_unlock(&zfcp_data.config_mutex);
return ret;
}