[MIPS] VR41xx: unsigned irq cannot be negative
authorroel kluin <roel.kluin@gmail.com>
Tue, 16 Sep 2008 00:50:54 +0000 (20:50 -0400)
committerRalf Baechle <ralf@linux-mips.org>
Tue, 16 Sep 2008 09:04:30 +0000 (11:04 +0200)
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/vr41xx/common/irq.c

index cba36a247e32b634e21e0e03e2c39c27aa4342ea..92dd1a0ca3523023a30d887067c9e280864cfce5 100644 (file)
@@ -72,6 +72,7 @@ static void irq_dispatch(unsigned int irq)
        cascade = irq_cascade + irq;
        if (cascade->get_irq != NULL) {
                unsigned int source_irq = irq;
+               int ret;
                desc = irq_desc + source_irq;
                if (desc->chip->mask_ack)
                        desc->chip->mask_ack(source_irq);
@@ -79,8 +80,9 @@ static void irq_dispatch(unsigned int irq)
                        desc->chip->mask(source_irq);
                        desc->chip->ack(source_irq);
                }
-               irq = cascade->get_irq(irq);
-               if (irq < 0)
+               ret = cascade->get_irq(irq);
+               irq = ret;
+               if (ret < 0)
                        atomic_inc(&irq_err_count);
                else
                        irq_dispatch(irq);