diff --git a/drivers/scsi/qla4xxx/ql4_83xx.c b/drivers/scsi/qla4xxx/ql4_83xx.c
index f963b06a158369d010b2aef319163807c7fe668c..8b367efb7239e9813095ba3a43f25479e0c5a71a 100644
--- a/drivers/scsi/qla4xxx/ql4_83xx.c
+++ b/drivers/scsi/qla4xxx/ql4_83xx.c
@@ -1402,7 +1402,6 @@ void qla4_83xx_process_mbox_intr(struct scsi_qla_host *ha, int outcount)
 		ha->mbox_status_count = outcount;
 		ha->isp_ops->interrupt_service_routine(ha, intr_status);
 	}
-	writel(0, &ha->qla4_83xx_reg->risc_intr);
 }
 
 /**