| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.4 334/350] libtraceevent: Fix memory leakage in copy_filter_type | Date | Tue, 10 Dec 2019 16:07:19 -0500 |
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From: Hewenliang <hewenliang4@huawei.com>
[ Upstream commit 10992af6bf46a2048ad964985a5b77464e5563b1 ]
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> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com> Link: http://lore.kernel.org/lkml/20191119014415.57210-1-hewenliang4@huawei.com Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 552592d153fb8..f3cbf86e51acf 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(arg); return -1; + } filter_type->filter = arg; -- 2.20.1
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