diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/quatech_daqp_cs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c index 7432e5761539..c44e7ec19e47 100644 --- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c +++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c @@ -214,6 +214,9 @@ static irqreturn_t daqp_interrupt(int irq, void *dev_id) return IRQ_NONE; status = inb(dev->iobase + DAQP_STATUS_REG); + if (!(status & DAQP_STATUS_EVENTS)) + return IRQ_NONE; + while (!(status & DAQP_STATUS_FIFO_EMPTY)) { unsigned short data; |