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tools lib traceevent: Fix memory leak in pretty_print()
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Commit 12e5556 "tools lib traceevent: Use helper trace-seq in print
functions like kernel does" added a extra trace_seq helper to process
string arguments like the kernel does it. But the difference between the
kernel and the userspace library is that the kernel's trace_seq structure
has a static allocated buffer. The userspace one has a dynamically
allocated one. It requires a trace_seq_destroy(), otherwise it produces
a nasty memory leak.

Cc: stable@vger.kernel.org # 3.14+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20140422192330.6bb09bf8@gandalf.local.home
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
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Steven Rostedt authored and Jiri Olsa committed Apr 23, 2014
1 parent 4508793 commit de04f86
Showing 1 changed file with 1 addition and 0 deletions.
1 change: 1 addition & 0 deletions tools/lib/traceevent/event-parse.c
Original file line number Diff line number Diff line change
Expand Up @@ -4344,6 +4344,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
format, len_arg, arg);
trace_seq_terminate(&p);
trace_seq_puts(s, p.buffer);
trace_seq_destroy(&p);
arg = arg->next;
break;
default:
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