linux-kernel - [tip:perf/urgent] tools lib traceevent: Fix missed freeing of subargs in free

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Date:	Fri, 19 Oct 2012 18:01:25 -0700
From:	tip-bot for Steven Rostedt <rostedt@...dmis.org>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, hpa@...or.com,
	mingo@...nel.org, rostedt@...dmis.org, tglx@...utronix.de,
	namhyung@...nel.org
Subject: [tip:perf/urgent] tools lib traceevent:
  Fix missed freeing of subargs in free_arg() in filter

Commit-ID:  743df75ff10630f1f2a461f0f4b51f601f53ec44
Gitweb:     http://git.kernel.org/tip/743df75ff10630f1f2a461f0f4b51f601f53ec44
Author:     Steven Rostedt <rostedt@...dmis.org>
AuthorDate: Mon, 1 Oct 2012 20:23:28 -0400
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 16 Oct 2012 13:07:05 -0300

tools lib traceevent: Fix missed freeing of subargs in free_arg() in filter

Some of args were missed in free_args(), as well as subargs.

That is args like FILTER_ARG_NUM have left and right pointers to other
args that also need to be freed.

Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: http://lkml.kernel.org/r/1349137408.22822.135.camel@gandalf.local.home
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/lib/traceevent/parse-filter.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index ad17855..5ea4326 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -209,7 +209,16 @@ static void free_arg(struct filter_arg *arg)
 	switch (arg->type) {
 	case FILTER_ARG_NONE:
 	case FILTER_ARG_BOOLEAN:
+		break;
+
 	case FILTER_ARG_NUM:
+		free_arg(arg->num.left);
+		free_arg(arg->num.right);
+		break;
+
+	case FILTER_ARG_EXP:
+		free_arg(arg->exp.left);
+		free_arg(arg->exp.right);
 		break;
 
 	case FILTER_ARG_STR:
@@ -218,6 +227,12 @@ static void free_arg(struct filter_arg *arg)
 		free(arg->str.buffer);
 		break;
 
+	case FILTER_ARG_VALUE:
+		if (arg->value.type == FILTER_STRING ||
+		    arg->value.type == FILTER_CHAR)
+			free(arg->value.str);
+		break;
+
 	case FILTER_ARG_OP:
 		free_arg(arg->op.left);
 		free_arg(arg->op.right);
--
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