linux-kernel - [PATCH] kernel: trace: strncpy, using strlcpy instead of strncpy

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Message-ID: <51624254.30301@asianux.com>
Date:	Mon, 08 Apr 2013 12:06:44 +0800
From:	Chen Gang <gang.chen@...anux.com>
To:	rostedt@...dmis.org, Frederic Weisbecker <fweisbec@...il.com>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] kernel: trace: strncpy, using strlcpy instead of strncpy


  for NUL terminated string, need always set '\0' at the end.

Signed-off-by: Chen Gang <gang.chen@...anux.com>
---
 kernel/trace/trace.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 829b2be..07860b9 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -125,7 +125,7 @@ static bool allocate_snapshot;
 
 static int __init set_cmdline_ftrace(char *str)
 {
-	strncpy(bootup_tracer_buf, str, MAX_TRACER_SIZE);
+	strlcpy(bootup_tracer_buf, str, MAX_TRACER_SIZE);
 	default_bootup_tracer = bootup_tracer_buf;
 	/* We are using ftrace early, expand it */
 	ring_buffer_expanded = true;
@@ -164,7 +164,7 @@ static char *trace_boot_options __initdata;
 
 static int __init set_trace_boot_options(char *str)
 {
-	strncpy(trace_boot_options_buf, str, MAX_TRACER_SIZE);
+	strlcpy(trace_boot_options_buf, str, MAX_TRACER_SIZE);
 	trace_boot_options = trace_boot_options_buf;
 	return 0;
 }
-- 
1.7.7.6
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