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Message-Id: <1305144843-5058-2-git-send-email-msalter@redhat.com>
Date: Wed, 11 May 2011 16:13:48 -0400
From: Mark Salter <msalter@...hat.com>
To: linux-kernel@...r.kernel.org
Subject: [PATCH 01/16] fix default __strnlen_user macro
The existing __strnlen_user macro simply resolved to strnlen. However, the
count returned by strnlen_user should include the NULL byte. This patch
fixes the __strnlen_user macro to include the NULL byte in the count.
Signed-off-by: Mark Salter <msalter@...hat.com>
---
include/asm-generic/uaccess.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index ac68c99..1d0fdf8 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -289,7 +289,7 @@ strncpy_from_user(char *dst, const char __user *src, long count)
* Return 0 on exception, a value greater than N if too long
*/
#ifndef __strnlen_user
-#define __strnlen_user strnlen
+#define __strnlen_user(s, n) (strnlen((s), (n)) + 1)
#endif
static inline long strnlen_user(const char __user *src, long n)
--
1.6.2.5
--
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