linux-kernel - [PATCH 6/6] hpsa: fix bad comparison

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Message-ID: <20110215213313.5407.42792.stgit@beardog.cce.hp.com>
Date:	Tue, 15 Feb 2011 15:33:13 -0600
From:	"Stephen M. Cameron" <scameron@...rdog.cce.hp.com>
To:	james.bottomley@...senpartnership.com
Cc:	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	mike.mikem@...rdog.cce.hp.com, thenzl@...hat.com,
	akpm@...ux-foundation.org, smcameron@...oo.com
Subject: [PATCH 6/6] hpsa: fix bad comparison

From: Dan Carpenter <error27@...il.com>

'!' has higher precedence than '&'.  CFGTBL_ChangeReq is 0x1 so the
original code is equivelent to if (!doorbell_value) {...

Signed-off-by: Dan Carpenter <error27@...il.com>
Acked-by: Stephen M. Cameron <scameron@...rdog.cce.hp.com>
---
 drivers/scsi/hpsa.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index eb6938f..c30591f 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3614,7 +3614,7 @@ static void __devinit hpsa_wait_for_mode_change_ack(struct ctlr_info *h)
 		spin_lock_irqsave(&h->lock, flags);
 		doorbell_value = readl(h->vaddr + SA5_DOORBELL);
 		spin_unlock_irqrestore(&h->lock, flags);
-		if (!doorbell_value & CFGTBL_ChangeReq)
+		if (!(doorbell_value & CFGTBL_ChangeReq))
 			break;
 		/* delay and try again */
 		usleep_range(10000, 20000);

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