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selftests/livepatch: fix resource leak in test_klp_syscall init error path

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In livepatch_init(), if klp_enable_patch() fails, the previously
created kobject and sysfs file are never cleaned up, causing a
resource leak. Capture the return value and add proper cleanup
on the error path.

Signed-off-by: Rui Qi <qirui.001@bytedance.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://patch.msgid.link/20260604083208.1071428-1-qirui.001@bytedance.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
This commit is contained in:
Rui Qi 2026-06-04 16:32:08 +08:00 committed by Petr Mladek
parent ed8f317671
commit 7203abb3f8
1 changed files with 5 additions and 1 deletions
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6
tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
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@ -109,7 +109,11 @@ static int livepatch_init(void)
*/
npids = npids_pending;
return klp_enable_patch(&patch);
ret = klp_enable_patch(&patch);
if (ret)
kobject_put(klp_kobj);
return ret;
}
static void livepatch_exit(void)