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* [PATCH] tools lib traceevent: Fix memory leakage in copy_filter_type
@ 2019-10-25  8:23 Hewenliang
  2019-11-13 19:46 ` Steven Rostedt
  2019-11-18 14:28 ` [PATCH v2] tools lib traceevent: " Steven Rostedt
  0 siblings, 2 replies; 12+ messages in thread
From: Hewenliang @ 2019-10-25  8:23 UTC (permalink / raw)
  To: acme, tstoyanov, rostedt, namhyung, linux-kernel; +Cc: linfeilong, hewenliang4

It is necessary to free the memory that we have allocated
when error occurs.

Fixes: ef3072cd1d5c ("tools lib traceevent: Get rid of die in add_filter_type()")
Signed-off-by: Hewenliang <hewenliang4@huawei.com>
---
 tools/lib/traceevent/parse-filter.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 552592d153fb..fbaa790d10d8 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1473,8 +1473,10 @@ static int copy_filter_type(struct tep_event_filter *filter,
 	if (strcmp(str, "TRUE") == 0 || strcmp(str, "FALSE") == 0) {
 		/* Add trivial event */
 		arg = allocate_arg();
-		if (arg == NULL)
+		if (arg == NULL) {
+			free(str);
 			return -1;
+		}
 
 		arg->type = TEP_FILTER_ARG_BOOLEAN;
 		if (strcmp(str, "TRUE") == 0)
@@ -1483,8 +1485,11 @@ static int copy_filter_type(struct tep_event_filter *filter,
 			arg->boolean.value = 0;
 
 		filter_type = add_filter_type(filter, event->id);
-		if (filter_type == NULL)
+		if (filter_type == NULL) {
+			free(str);
+			free(arg);
 			return -1;
+		}
 
 		filter_type->filter = arg;
 
-- 
2.19.1


^ permalink raw reply related	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2019-11-23  8:15 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-10-25  8:23 [PATCH] tools lib traceevent: Fix memory leakage in copy_filter_type Hewenliang
2019-11-13 19:46 ` Steven Rostedt
2019-11-13 19:47   ` Steven Rostedt
2019-11-13 20:37   ` Arnaldo Carvalho de Melo
2019-11-13 20:40     ` Steven Rostedt
2019-11-13 23:01       ` Arnaldo Carvalho de Melo
2019-11-18  3:42       ` Hewenliang
2019-11-19  1:44       ` [PATCH v2] " Hewenliang
2019-11-21 14:43         ` Arnaldo Carvalho de Melo
2019-11-23  8:15         ` [tip: perf/core] libtraceevent: " tip-bot2 for Hewenliang
2019-11-18 14:28 ` [PATCH v2] tools lib traceevent: " Steven Rostedt
2019-11-18 15:24   ` Arnaldo Carvalho de Melo

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