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[PATCH]prec: record_arch_list_add_mem add check for len


Add this check for some code maybe len < 0.

Thanks,
Hui

2010-07-16  Hui Zhu  <teawater@gmail.com>

	* record.c (record_arch_list_add_mem): Add check for len.


---
 record.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/record.c
+++ b/record.c
@@ -497,6 +497,8 @@ record_arch_list_add_mem (CORE_ADDR addr

   if (!addr)	/* FIXME: Why?  Some arch must permit it... */
     return 0;
+  if (len <= 0)
+    return 0;

   rec = record_mem_alloc (addr, len);


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