lkml.org 
[lkml]   [2018]   [Nov]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] tools/lib/traceevent: Add sanity check to is_timestamp_in_us()

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

This patch adds a sanity check to is_timestamp_in_us() input
parameter trace_clock. It avoids a potential segfault in this
function for the case trace_clock is NULL.

Reported-by: Slavomir Kaslev <kaslevs@vmware.com>
Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
tools/lib/traceevent/event-parse.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 3692f29fee46..c383305510b4 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -5409,7 +5409,7 @@ void tep_event_info(struct trace_seq *s, struct tep_event_format *event,

static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
{
- if (!use_trace_clock)
+ if (!trace_clock || !use_trace_clock)
return true;

if (!strcmp(trace_clock, "local") || !strcmp(trace_clock, "global")
--
2.19.1
\
 
 \ /
  Last update: 2018-11-28 20:57    [W:0.054 / U:0.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site