linux-kernel - [PATCH 1/4] mfd: WM8350 off by one bug

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Date:	Tue,  5 Jan 2010 13:59:06 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	linux-kernel@...r.kernel.org, Dan Carpenter <error27@...il.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: [PATCH 1/4] mfd: WM8350 off by one bug

From: Dan Carpenter <error27@...il.com>

If irq == WM8350_NUM_IRQ that would put us past the end of the array.

Signed-off-by: Dan Carpenter <error27@...il.com>
Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
---
 drivers/mfd/wm8350-irq.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/wm8350-irq.c b/drivers/mfd/wm8350-irq.c
index c8df547..9025f29 100644
--- a/drivers/mfd/wm8350-irq.c
+++ b/drivers/mfd/wm8350-irq.c
@@ -434,7 +434,7 @@ int wm8350_register_irq(struct wm8350 *wm8350, int irq,
 			irq_handler_t handler, unsigned long flags,
 			const char *name, void *data)
 {
-	if (irq < 0 || irq > WM8350_NUM_IRQ || !handler)
+	if (irq < 0 || irq >= WM8350_NUM_IRQ || !handler)
 		return -EINVAL;
 
 	if (wm8350->irq[irq].handler)
@@ -453,7 +453,7 @@ EXPORT_SYMBOL_GPL(wm8350_register_irq);
 
 int wm8350_free_irq(struct wm8350 *wm8350, int irq)
 {
-	if (irq < 0 || irq > WM8350_NUM_IRQ)
+	if (irq < 0 || irq >= WM8350_NUM_IRQ)
 		return -EINVAL;
 
 	wm8350_mask_irq(wm8350, irq);
-- 
1.6.5.7

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