perf tools: Use zfree to help detect use after free bugs

[linux.git] / tools / perf / util / probe-event.c

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 4d3cd1a0278a1eb938d19ce470cbe52ad5574002..86ed8580c3cbc71da06cd0f366051e0a30607c75 100644 (file)
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -356,7 +356,7 @@ static int add_exec_to_probe_trace_events(struct probe_trace_event *tevs,
                offset = tevs[i].point.address - stext;
                offset += tevs[i].point.offset;
                tevs[i].point.offset = 0;
-               free(tevs[i].point.symbol);
+               zfree(&tevs[i].point.symbol);
                ret = e_snprintf(buf, 32, "0x%lx", offset);
                if (ret < 0)
                        break;
@@ -683,7 +683,7 @@ static int show_available_vars_at(struct debuginfo *dinfo,
                 */
                fprintf(stdout, "\t@<%s+%lu>\n", vl->point.symbol,
                        vl->point.offset);
-               free(vl->point.symbol);
+               zfree(&vl->point.symbol);
                nvars = 0;
                if (vl->vars) {
                        strlist__for_each(node, vl->vars) {
@@ -1592,7 +1592,7 @@ void clear_perf_probe_event(struct perf_probe_event *pev)
                field = pev->args[i].field;
                while (field) {
                        next = field->next;
-                       free(field->name);
+                       zfree(&field->name);
                        free(field);
                        field = next;
                }
@@ -2153,7 +2153,7 @@ end:
        for (i = 0; i < npevs; i++) {
                for (j = 0; j < pkgs[i].ntevs; j++)
                        clear_probe_trace_event(&pkgs[i].tevs[j]);
-               free(pkgs[i].tevs);
+               zfree(&pkgs[i].tevs);
        }
        free(pkgs);