[PATCH v1 05/17] perf probe-event: Ensure probe event nsinfo is always cleared

From: Ian Rogers

Date: Sat Nov 22 2025 - 03:19:46 EST


Move nsinfo__zput from cleanup_perf_probe_events to
clear_perf_probe_event so it is always executed. Clean up
clear_perf_probe_event to not call nsinfo__zput and use the pev
variable to avoid repeated array accesses.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/perf/util/probe-event.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 6ab2eb551b6c..710e4620923e 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2419,6 +2419,7 @@ void clear_perf_probe_event(struct perf_probe_event *pev)
}
pev->nargs = 0;
zfree(&pev->args);
+ nsinfo__zput(pev->nsi);
}

#define strdup_or_goto(str, label) \
@@ -3767,12 +3768,11 @@ void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs)
/* Loop 3: cleanup and free trace events */
for (i = 0; i < npevs; i++) {
pev = &pevs[i];
- for (j = 0; j < pevs[i].ntevs; j++)
- clear_probe_trace_event(&pevs[i].tevs[j]);
- zfree(&pevs[i].tevs);
- pevs[i].ntevs = 0;
- nsinfo__zput(pev->nsi);
- clear_perf_probe_event(&pevs[i]);
+ for (j = 0; j < pev->ntevs; j++)
+ clear_probe_trace_event(&pev->tevs[j]);
+ zfree(&pev->tevs);
+ pev->ntevs = 0;
+ clear_perf_probe_event(pev);
}
}

--
2.52.0.rc2.455.g230fcf2819-goog