qla2xxx: Decrease pci access for response queue processing for ISPFX00.

Signed-off-by: Armen Baloyan <armen.baloyan@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/scsi/qla2xxx/qla_mr.c b/drivers/scsi/qla2xxx/qla_mr.c
index 1801e5f..eb9be2e 100644
--- a/drivers/scsi/qla2xxx/qla_mr.c
+++ b/drivers/scsi/qla2xxx/qla_mr.c
@@ -2676,7 +2676,7 @@
 	uint16_t lreq_q_out = 0;
 
 	lreq_q_in = RD_REG_DWORD(rsp->rsp_q_in);
-	lreq_q_out = RD_REG_DWORD(rsp->rsp_q_out);
+	lreq_q_out = rsp->ring_index;
 
 	while (lreq_q_in != lreq_q_out) {
 		lptr = rsp->ring_ptr;