From: roel kluin <roel.kluin@gmail.com>
Date: Tue, 16 Sep 2008 00:50:54 +0000 (-0400)
Subject: [MIPS] VR41xx: unsigned irq cannot be negative
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a83479545d0e693da0886fd28d041d3a5c1bc966;p=linux-beck.git

[MIPS] VR41xx: unsigned irq cannot be negative

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>
---

diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c
index cba36a247e32..92dd1a0ca352 100644
--- a/arch/mips/vr41xx/common/irq.c
+++ b/arch/mips/vr41xx/common/irq.c
@@ -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);