提交 382be668 编写于 作者: D Dan Carpenter 提交者: James Bottomley

[SCSI] hpsa: fix bad comparison

'!' has higher precedence than '&'.  CFGTBL_ChangeReq is 0x1 so the
original code is equivelent to if (!doorbell_value) {...
Signed-off-by: NDan Carpenter <error27@gmail.com>
Acked-by: NStephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
上级 ba95e2ac
......@@ -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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