linux-kernel - [tip:perf/urgent] ftrace: Fix strncpy() use, use strlcpy() instead of strncpy()

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Message-ID: <tip-75761cc15877c155b3849b4e0e0cb3f897faf471@git.kernel.org>
Date:	Mon, 8 Apr 2013 08:31:49 -0700
From:	tip-bot for Chen Gang <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	fweisbec@...il.com, gang.chen@...anux.com, tglx@...utronix.de
Subject: [tip:perf/urgent] ftrace: Fix strncpy() use, use strlcpy()
  instead of strncpy()

Commit-ID:  75761cc15877c155b3849b4e0e0cb3f897faf471
Gitweb:     http://git.kernel.org/tip/75761cc15877c155b3849b4e0e0cb3f897faf471
Author:     Chen Gang <gang.chen@...anux.com>
AuthorDate: Mon, 8 Apr 2013 12:12:39 +0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 8 Apr 2013 13:26:56 +0200

ftrace: Fix strncpy() use, use strlcpy() instead of strncpy()

For NUL terminated string we always need to set '\0' at the end.

Signed-off-by: Chen Gang <gang.chen@...anux.com>
Cc: rostedt@...dmis.org
Cc: Frederic Weisbecker <fweisbec@...il.com>
Link: http://lkml.kernel.org/r/516243B7.9020405@asianux.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/trace/ftrace.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 6893d5a..db14374 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3441,14 +3441,14 @@ static char ftrace_filter_buf[FTRACE_FILTER_SIZE] __initdata;
 
 static int __init set_ftrace_notrace(char *str)
 {
-	strncpy(ftrace_notrace_buf, str, FTRACE_FILTER_SIZE);
+	strlcpy(ftrace_notrace_buf, str, FTRACE_FILTER_SIZE);
 	return 1;
 }
 __setup("ftrace_notrace=", set_ftrace_notrace);
 
 static int __init set_ftrace_filter(char *str)
 {
-	strncpy(ftrace_filter_buf, str, FTRACE_FILTER_SIZE);
+	strlcpy(ftrace_filter_buf, str, FTRACE_FILTER_SIZE);
 	return 1;
 }
 __setup("ftrace_filter=", set_ftrace_filter);
--
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