scsi: qedf: Simplify mutex_unlock() usage

The commit 6d1368e8 ("scsi: qedf: fixup locking in
qedf_restart_rport()") introduced the lock. Though the lock protects
only the fc_rport_create() call. Thus, we can move the mutex unlock up
before the if statement and drop the else body.

Link: https://lore.kernel.org/r/20200403092717.19779-1-dwagner@suse.de
Cc: Hannes Reinecke <hare@suse.com>
Cc: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qedf/qedf_els.c

@@ -388,14 +388,10 @@ void qedf_restart_rport(struct qedf_rport *fcport)
 		mutex_lock(&lport->disc.disc_mutex);
 		/* Recreate the rport and log back in */
 		rdata = fc_rport_create(lport, port_id);
-		if (rdata) {
 		mutex_unlock(&lport->disc.disc_mutex);
+		if (rdata)
 			fc_rport_login(rdata);
 		fcport->rdata = rdata;
-		} else {
-			mutex_unlock(&lport->disc.disc_mutex);
-			fcport->rdata = NULL;
-		}
 	}
 	clear_bit(QEDF_RPORT_IN_RESET, &fcport->flags);
 }