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crypto: mcryptd - use list_first_entry_or_null()

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Simplify mcryptd_opportunistic_flush() with list_first_entry_or_null().

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Geliang Tang 2015-11-16 22:37:15 +08:00 committed by Herbert Xu
parent 304e4818d4
commit 08346170d4
1 changed files with 2 additions and 6 deletions
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8
crypto/mcryptd.c
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@ -128,13 +128,9 @@ static void mcryptd_opportunistic_flush(void)
flist = per_cpu_ptr(mcryptd_flist, smp_processor_id());
while (single_task_running()) {
mutex_lock(&flist->lock);
if (list_empty(&flist->list)) {
mutex_unlock(&flist->lock);
return;
}
cstate = list_entry(flist->list.next,
cstate = list_first_entry_or_null(&flist->list,
struct mcryptd_alg_cstate, flush_list);
if (!cstate->flusher_engaged) {
if (!cstate || !cstate->flusher_engaged) {
mutex_unlock(&flist->lock);
return;
}