'!' has higher precedence than '&'. CFGTBL_ChangeReq is 0x1 so the
original code is equivelent to if (!doorbell_value) {...
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 959eeb2..f46f92a 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3591,7 +3591,7 @@ 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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