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Subject[PATCH] tools lib traceevent: Fix memory leakage in copy_filter_type
Date
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
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