From 020e773f6b2e797a13d23723773ed1b3ba2c35dc Mon Sep 17 00:00:00 2001
From: Andy Whitcroft <apw@canonical.com>
Date: Mon, 1 Nov 2010 21:01:44 +0000
Subject: [PATCH] kconfig: sym_expand_string_value: allow for string
termination when reallocing
When expanding a parameterised string we may run out of space, this
triggers a realloc. When computing the new allocation size we do not
allow for the terminating '\0'. Allow for this when calculating the new
length.
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
scripts/kconfig/symbol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index c0efe102d655..af6e9f3de950 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -875,7 +875,7 @@ const char *sym_expand_string_value(const char *in)
symval = sym_get_string_value(sym);
}
- newlen = strlen(res) + strlen(symval) + strlen(src);
+ newlen = strlen(res) + strlen(symval) + strlen(src) + 1;
if (newlen > reslen) {
reslen = newlen;
res = realloc(res, reslen);