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udevd: worker - allow passing NULL to worker_unref()

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This commit is contained in:
Tom Gundersen
2015-05-06 17:36:39 +02:00
parent 8b46c3fc48
commit c4fcf70a01
1 changed files with 1 additions and 2 deletions
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3
src/udev/udevd.c
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@@ -150,8 +150,7 @@ static void worker_cleanup(struct worker *worker) {
}
static void worker_unref(struct worker *worker) {
worker->refcount--;
if (worker->refcount > 0)
if (!worker || (-- worker->refcount) > 0)
return;
log_debug("worker ["PID_FMT"] cleaned up", worker->pid);
worker_cleanup(worker);