fix interrupt handler return value

diff --git a/comedi/drivers/cb_pcidas64.c b/comedi/drivers/cb_pcidas64.c
index 8a39e5389686364ac044e3864b9894b63efd3283..cfbc0c073520c260da3c3c1c087c6b1586fbba37 100644 (file)
--- a/comedi/drivers/cb_pcidas64.c
+++ b/comedi/drivers/cb_pcidas64.c
@@ -3010,7 +3010,7 @@ static irqreturn_t handle_interrupt(int irq, void *d, struct pt_regs *regs)
        if(dev->attached == 0)
        {
                DEBUG_PRINT("cb_pcidas64: premature interrupt, ignoring", status);
-               return;
+               return IRQ_HANDLED;
        }
        handle_ai_interrupt(dev, status, plx_status);
        handle_ao_interrupt(dev, status, plx_status);