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seize: fix error handling for check_freezer_cgroup

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When `check_freezer_cgroup()` has non-zero return value, `goto err` calls
`return ret`. However, the value of `ret` has been set to `0` in the lines
above and CRIU does not handle the error properly.

This problem is related to https://github.com/checkpoint-restore/criu/issues/2508

Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>
This commit is contained in:
Radostin Stoyanov 2024-11-04 19:30:26 +00:00 committed by Andrei Vagin
parent dcc3b49619
commit 216d804aab
1 changed files with 3 additions and 4 deletions
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7
criu/seize.c
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@ -1009,7 +1009,7 @@ static int cgroup_version(void)
int collect_pstree(void)
{
pid_t pid = root_item->pid->real;
int ret = -1;
int ret, exit_code = -1;
struct proc_status_creds creds;
struct pstree_item *iter;
@ -1069,7 +1069,6 @@ int collect_pstree(void)
if (opts.freeze_cgroup && !freeze_cgroup_disabled &&
freezer_wait_processes()) {
ret = -1;
goto err;
}
@ -1081,12 +1080,12 @@ int collect_pstree(void)
goto err;
}
ret = 0;
exit_code = 0;
timing_stop(TIME_FREEZING);
timing_start(TIME_FROZEN);
err:
/* Freezing stage finished in time - disable timer. */
alarm(0);
return ret;
return exit_code;
}