linux-kernel - [PATCH 01/11] parse-events: Free flag/sym field on failure path

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Date:	Mon, 23 Apr 2012 13:58:28 +0900
From:	Namhyung Kim <namhyung.kim@....com>
To:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Namhyung Kim <namhyung@...il.com>, Ingo Molnar <mingo@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Borislav Petkov <bp@...en8.de>,
	David Ahern <dsahern@...il.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 01/11] parse-events: Free flag/sym field on failure path

If parsing flag/sym field failed after allocating it, it
should be freed.

Signed-off-by: Namhyung Kim <namhyung.kim@....com>
---
 parse-events.c |   14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/parse-events.c b/parse-events.c
index bd078ba..81e6581 100644
--- a/parse-events.c
+++ b/parse-events.c
@@ -2166,10 +2166,10 @@ process_fields(struct event_format *event, struct print_flag_sym **list, char **
 
 		value = arg_eval(arg);
 		if (value == NULL)
-			goto out_free;
+			goto out_free_field;
 		field->value = strdup(value);
 		if (field->value == NULL)
-			goto out_free;
+			goto out_free_field;
 
 		free_arg(arg);
 		arg = alloc_arg();
@@ -2177,14 +2177,14 @@ process_fields(struct event_format *event, struct print_flag_sym **list, char **
 		free_token(token);
 		type = process_arg(event, arg, &token);
 		if (test_type_token(type, token, EVENT_OP, "}"))
-			goto out_free;
+			goto out_free_field_value;
 
 		value = arg_eval(arg);
 		if (value == NULL)
-			goto out_free;
+			goto out_free_field_value;
 		field->str = strdup(value);
 		if (field->str == NULL)
-			goto out_free;
+			goto out_free_field_value;
 		free_arg(arg);
 		arg = NULL;
 
@@ -2198,6 +2198,10 @@ process_fields(struct event_format *event, struct print_flag_sym **list, char **
 	*tok = token;
 	return type;
 
+out_free_field_value:
+	free(field->value);
+out_free_field:
+	free(field);
 out_free:
 	free_arg(arg);
 	free_token(token);
-- 
1.7.10

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