diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/message/fusion/mptbase.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 8ac77caf933..20609966c2a 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -369,20 +369,21 @@ static irqreturn_t mpt_interrupt(int irq, void *bus_id, struct pt_regs *r) { MPT_ADAPTER *ioc = bus_id; - u32 pa; + u32 pa = CHIPREG_READ32_dmasync(&ioc->chip->ReplyFifo); + + if (pa == 0xFFFFFFFF) + return IRQ_NONE; /* * Drain the reply FIFO! */ - while (1) { - pa = CHIPREG_READ32_dmasync(&ioc->chip->ReplyFifo); - if (pa == 0xFFFFFFFF) - return IRQ_HANDLED; - else if (pa & MPI_ADDRESS_REPLY_A_BIT) + do { + if (pa & MPI_ADDRESS_REPLY_A_BIT) mpt_reply(ioc, pa); else mpt_turbo_reply(ioc, pa); - } + pa = CHIPREG_READ32_dmasync(&ioc->chip->ReplyFifo); + } while (pa != 0xFFFFFFFF); return IRQ_HANDLED; } |