From 637f23abca87d26e091e0d6647ec878d97d2c6cd Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 22 Jul 2017 10:33:02 +0300
Subject: [PATCH] tile: array underflow in setup_maxnodemem()
My static checker correctly complains that we should have a lower bound
on "node" to prevent an array underflow.
Fixes: 867e359b97c9 ("arch/tile: core support for Tilera 32-bit chips.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
---
arch/tile/kernel/setup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index 443a70bccc1c8..b1474e7d9afb3 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -140,7 +140,7 @@ static int __init setup_maxnodemem(char *str)
{
char *endp;
unsigned long long maxnodemem;
- long node;
+ unsigned long node;
node = str ? simple_strtoul(str, &endp, 0) : INT_MAX;
if (node >= MAX_NUMNODES || *endp != ':')
--
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