Staging: VME: Fix Universe II int ack logic.

The driver must acknowledge the interrupts that have been actually serviced, not
the ones active. The current code could acknowledge an interrupt that has not
been serviced at all.

Signed-off-by: Vincent Bossier <vincent.bossier@gmail.com>
Acked-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c
index 1c94ae6b867fa3f8b5e5bb0bab37de7eec0cdd83..6aad34b8b3fe4c7d2e63f08d6cab6ebeb06ea090 100644 (file)
--- a/drivers/staging/vme/bridges/vme_ca91cx42.c
+++ b/drivers/staging/vme/bridges/vme_ca91cx42.c
@@ -190,7 +190,7 @@ static irqreturn_t ca91cx42_irqhandler(int irq, void *ptr)
                serviced |= ca91cx42_VIRQ_irqhandler(ca91cx42_bridge, stat);
 
        /* Clear serviced interrupts */
-       iowrite32(stat, bridge->base + LINT_STAT);
+       iowrite32(serviced, bridge->base + LINT_STAT);
 
        return IRQ_HANDLED;
 }