staging: sep: using strlcpy instead of strncpy

  set '\0' at tail for NUL terminated string, or TP_printk may cause issue.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/sep/sep_trace_events.h b/drivers/staging/sep/sep_trace_events.h
index 2b053a9..74f4c9a 100644 (file)
--- a/drivers/staging/sep/sep_trace_events.h
+++ b/drivers/staging/sep/sep_trace_events.h
@@ -53,6 +53,11 @@
 #include <linux/tracepoint.h>
 
 /*
+ * Since use str*cpy in header file, better to include string.h, directly.
+ */
+#include <linux/string.h>
+
+/*
  * The TRACE_EVENT macro is broken up into 5 parts.
  *
  * name: name of the trace point. This is also how to enable the tracepoint.
@@ -97,7 +102,7 @@ TRACE_EVENT(sep_func_start,
        ),
 
        TP_fast_assign(
-               strncpy(__entry->name, name, 20);
+               strlcpy(__entry->name, name, 20);
                __entry->branch = branch;
        ),
 
@@ -116,7 +121,7 @@ TRACE_EVENT(sep_func_end,
        ),
 
        TP_fast_assign(
-               strncpy(__entry->name, name, 20);
+               strlcpy(__entry->name, name, 20);
                __entry->branch = branch;
        ),
 
@@ -135,7 +140,7 @@ TRACE_EVENT(sep_misc_event,
        ),
 
        TP_fast_assign(
-               strncpy(__entry->name, name, 20);
+               strlcpy(__entry->name, name, 20);
                __entry->branch = branch;
        ),