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[1/5] ARCNET: return IRQ_NONE if the interface isn't running

Message ID 1411566113-15583-2-git-send-email-m.grzeschik@pengutronix.de
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Michael Grzeschik Sept. 24, 2014, 1:41 p.m. UTC 
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>
---
 drivers/net/arcnet/arcnet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/arcnet/arcnet.c b/drivers/net/arcnet/arcnet.c
index 3b790de..09de683 100644
--- 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",