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tools lib traceevent: Fix memory leakage in filter_event 

It is necessary to call free_arg(arg) when add_filter_type() returns NULL
in filter_event().

Signed-off-by: Hewenliang <hewenliang4@huawei.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Feilong Lin <linfeilong@huawei.com>
Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Link: http://lore.kernel.org/lkml/20191209063549.59941-1-hewenliang4@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Hewenliang 2019-12-09 01:35:49 -05:00 committed by Arnaldo Carvalho de Melo
parent 9f0bff1180
commit f84ae29a61
1 changed files with 3 additions and 1 deletions
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4
tools/lib/traceevent/parse-filter.c
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@ -1228,8 +1228,10 @@ filter_event(struct tep_event_filter *filter, struct tep_event *event,
} }
filter_type = add_filter_type(filter, event->id); filter_type = add_filter_type(filter, event->id);
if (filter_type == NULL) if (filter_type == NULL) {
free_arg(arg);
return TEP_ERRNO__MEM_ALLOC_FAILED; return TEP_ERRNO__MEM_ALLOC_FAILED;
}
if (filter_type->filter) if (filter_type->filter)
free_arg(filter_type->filter); free_arg(filter_type->filter);