linux-kernel - [patch] irqchip/irq-crossbar: off by one bugs in init

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Message-ID: <20140807152821.GB10299@mwanda>
Date:	Thu, 7 Aug 2014 18:28:21 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Sricharan R <r.sricharan@...com>
Cc:	Jason Cooper <jason@...edaemon.net>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [patch] irqchip/irq-crossbar: off by one bugs in init

My static checker complains that the ">" should be ">=" or else we go
beyoned the end of the cb->irq_map[] array on the next line.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c
index 85c2985..bbbaf5d 100644
--- a/drivers/irqchip/irq-crossbar.c
+++ b/drivers/irqchip/irq-crossbar.c
@@ -220,7 +220,7 @@ static int __init crossbar_of_init(struct device_node *node)
 			of_property_read_u32_index(node,
 						   "ti,irqs-reserved",
 						   i, &entry);
-			if (entry > max) {
+			if (entry >= max) {
 				pr_err("Invalid reserved entry\n");
 				ret = -EINVAL;
 				goto err_irq_map;
@@ -238,7 +238,7 @@ static int __init crossbar_of_init(struct device_node *node)
 			of_property_read_u32_index(node,
 						   "ti,irqs-skip",
 						   i, &entry);
-			if (entry > max) {
+			if (entry >= max) {
 				pr_err("Invalid skip entry\n");
 				ret = -EINVAL;
 				goto err_irq_map;
--
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