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[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>
This commit is contained in:
roel kluin 2008-09-15 20:50:54 -04:00 committed by Ralf Baechle
parent bc45eb8950
commit a83479545d
1 changed files with 4 additions and 2 deletions
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6
arch/mips/vr41xx/common/irq.c
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@ -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);