From df3b7668715f9acfe6ff37dd886f68e46ccd677e Mon Sep 17 00:00:00 2001
From: Mark Haverkamp <markh@osdl.org>
Date: Wed, 10 May 2006 09:13:11 -0700
Subject: [SCSI] aacraid: sa race condition fix

Received From Mark Salyzyn

A race condition existed that could result in a lost completion of a
command to the ppc based cards.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---
 drivers/scsi/aacraid/sa.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/scsi')

diff --git a/drivers/scsi/aacraid/sa.c b/drivers/scsi/aacraid/sa.c
index ecc47b605c58..88d400fccc94 100644
--- a/drivers/scsi/aacraid/sa.c
+++ b/drivers/scsi/aacraid/sa.c
@@ -66,11 +66,11 @@ static irqreturn_t aac_sa_intr(int irq, void *dev_id, struct pt_regs *regs)
 			sa_writew(dev, DoorbellClrReg_p, PrintfReady); /* clear PrintfReady */
 			sa_writew(dev, DoorbellReg_s, PrintfDone);
 		} else if (intstat & DOORBELL_1) {	// dev -> Host Normal Command Ready
-			aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
 			sa_writew(dev, DoorbellClrReg_p, DOORBELL_1);
+			aac_command_normal(&dev->queues->queue[HostNormCmdQueue]);
 		} else if (intstat & DOORBELL_2) {	// dev -> Host Normal Response Ready
-			aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
 			sa_writew(dev, DoorbellClrReg_p, DOORBELL_2);
+			aac_response_normal(&dev->queues->queue[HostNormRespQueue]);
 		} else if (intstat & DOORBELL_3) {	// dev -> Host Normal Command Not Full
 			sa_writew(dev, DoorbellClrReg_p, DOORBELL_3);
 		} else if (intstat & DOORBELL_4) {	// dev -> Host Normal Response Not Full
-- 
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