scsi: qla2xxx: Make qla2x00_sysfs_write_nvram() easier to analyze

Modify the unlock statement such that it becomes easier for static
analyzers to analyze it. This patch does not change any functionality.

Cc: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_attr.c

@@ -218,7 +218,7 @@ qla2x00_sysfs_write_nvram(struct file *filp, struct kobject *kobj,
 
 	mutex_lock(&ha->optrom_mutex);
 	if (qla2x00_chip_is_down(vha)) {
-		mutex_unlock(&vha->hw->optrom_mutex);
+		mutex_unlock(&ha->optrom_mutex);
 		return -EAGAIN;
 	}