ARCNET: return IRQ_NONE if the interface isn't running

The interrupt handler needs to return IRQ_NONE in case
two devices are used with the shared interrupt handler.
Otherwise it could steal interrupts from the other
interface.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c
index 3b790de..09de683 100644 (file)
--- a/drivers/net/arcnet/arcnet.c
+++ b/drivers/net/arcnet/arcnet.c
@@ -777,7 +777,7 @@ irqreturn_t arcnet_interrupt(int irq, void *dev_id)
                        ACOMMAND(CFLAGScmd | RESETclear);
                AINTMASK(0);
                spin_unlock(&lp->lock);
-               return IRQ_HANDLED;
+               return retval;
        }
 
        BUGMSG(D_DURING, "in arcnet_inthandler (status=%Xh, intmask=%Xh)\n",