Fix memory leaking on failure path in debuginfo__find_trace_events()
which frees an array of probe_trace_events but doesn't clear all
allocated sub-structures and strings.
So, before doing zfree(tevs), clear all the array elements which
can have allocated resources.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu...@hitachi.com>
Reported-by: Wang Nan <wangn...@huawei.com>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Zefan Li <lize...@huawei.com>
Cc: pi3or...@163.com
---
tools/perf/util/probe-finder.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index bd8f03d..63993d7 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -1246,7 +1246,7 @@ int debuginfo__find_trace_events(struct debuginfo *dbg,
struct trace_event_finder tf = {
.pf = {.pev = pev, .callback = add_probe_trace_event},
.max_tevs = probe_conf.max_probes, .mod = dbg->mod};
- int ret;
+ int ret, i;
/* Allocate result tevs array */
*tevs = zalloc(sizeof(struct probe_trace_event) * tf.max_tevs);
@@ -1258,6 +1258,8 @@ int debuginfo__find_trace_events(struct debuginfo *dbg,
ret = debuginfo__find_probes(dbg, &tf.pf);
if (ret < 0) {
+ for (i = 0; i < tf.ntevs; i++)
+ clear_probe_trace_event(&tf.tevs[i]);
zfree(tevs);
return ret;
}
--
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