[Xen-devel] [PATCH 9/9] xen/p2m/debugfs: Fix potential pointer exception.

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

We could be referencing the last + 1 element of level_name[]
array which would cause a pointer exception.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 arch/x86/xen/p2m.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 58efeb9..bc4cf0a 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -786,9 +786,9 @@ EXPORT_SYMBOL_GPL(m2p_find_override_pfn);
 int p2m_dump_show(struct seq_file *m, void *v)
 {
        static const char * const level_name[] = { "top", "middle",
-                                               "entry", "abnormal" };
+                                               "entry", "abnormal", NULL};
        static const char * const type_name[] = { "identity", "missing",
-                                               "pfn", "abnormal"};
+                                               "pfn", "abnormal", NULL};
 #define TYPE_IDENTITY 0
 #define TYPE_MISSING 1
 #define TYPE_PFN 2
-- 
1.7.4.1


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