From: Florian Fainelli <florian@openwrt.org>
To: ralf@linux-mips.org, linux-mips@linux-mips.org
Subject: [PATCH] rb532: fix irq number check in rb532_set_type
Date: Wed, 27 May 2009 14:14:06 +0200 [thread overview]
Message-ID: <200905271414.07074.florian@openwrt.org> (raw)
We only have 14 GPIO interrupt sources numbered
from 0 to 13. Therefore the check against irq_nr
in rb532_set_type is off-by-one. This fixes a mistake
introduced by commit 1b4f571632ffb0caa4170d886694f2555c0d9a4b.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
---
diff --git a/arch/mips/rb532/irq.c b/arch/mips/rb532/irq.c
index 8ac4372..f078820 100644
--- a/arch/mips/rb532/irq.c
+++ b/arch/mips/rb532/irq.c
@@ -175,7 +175,7 @@ static int rb532_set_type(unsigned int irq_nr, unsigned type)
int gpio = irq_nr - GPIO_MAPPED_IRQ_BASE;
int group = irq_to_group(irq_nr);
- if (group != GPIO_MAPPED_IRQ_GROUP || irq_nr >= (GROUP4_IRQ_BASE + 13))
+ if (group != GPIO_MAPPED_IRQ_GROUP || irq_nr > (GROUP4_IRQ_BASE + 13))
return (type == IRQ_TYPE_LEVEL_HIGH) ? 0 : -EINVAL;
switch (type) {
next reply other threads:[~2009-05-27 12:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-27 12:14 Florian Fainelli [this message]
2009-05-27 13:15 ` [PATCH] rb532: fix irq number check in rb532_set_type Ralf Baechle
2009-05-28 10:37 ` Florian Fainelli
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