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perf timechart: Fix memory leaks in draw_wakeups()

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The second loop for per_pidcommd is meaningful only when it doesn't have
from and to tasks.  Also make sure c->Y is set before copying the comm
string otherwise it will be overwritten by next one.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Namhyung Kim 2026-06-24 13:58:33 -07:00
parent 96a463ee62
commit fcc9159fc8
1 changed files with 3 additions and 3 deletions
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6
tools/perf/builtin-timechart.c
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@ -1110,12 +1110,12 @@ static void draw_wakeups(struct timechart *tchart)
c = c->next;
}
c = p->all;
while (c) {
if (p->pid == we->waker && !from) {
while (c && (!from || !to)) {
if (c->Y && p->pid == we->waker && !from) {
from = c->Y;
task_from = strdup(c->comm);
}
if (p->pid == we->wakee && !to) {
if (c->Y && p->pid == we->wakee && !to) {
to = c->Y;
task_to = strdup(c->comm);
}