From: Vegard Nossum <vegard.nossum@gmail.com>
Date: Fri, 6 Jun 2008 14:33:25 +0000 (+0200)
Subject: x86: don't return invalid pointers from node_to_cpumask()
X-Git-Tag: v2.6.27-rc1~1106^2~246^2~3
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=03db1f74a7d823e3de3767f36b1e08829f6fb3a1;p=linux-2.6

x86: don't return invalid pointers from node_to_cpumask()

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index dd12c1c84a..df49ce87a3 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -350,6 +350,7 @@ cpumask_t *_node_to_cpumask_ptr(int node)
 		dump_stack();
 		return &cpu_online_map;
 	}
+	BUG_ON(node >= nr_node_ids);
 	return &node_to_cpumask_map[node];
 }
 EXPORT_SYMBOL(_node_to_cpumask_ptr);
@@ -365,6 +366,7 @@ cpumask_t node_to_cpumask(int node)
 		dump_stack();
 		return cpu_online_map;
 	}
+	BUG_ON(node >= nr_node_ids);
 	return node_to_cpumask_map[node];
 }
 EXPORT_SYMBOL(node_to_cpumask);