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Subject[PATCH 2/2] crypto: mcryptd - use list_first_entry_or_null()
Date
Simplify mcryptd_opportunistic_flush() with list_first_entry_or_null().

Signed-off-by: Geliang Tang <geliangtang@163.com>
---
crypto/mcryptd.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/crypto/mcryptd.c b/crypto/mcryptd.c
index fe5b495a..f78d4fc 100644
--- a/crypto/mcryptd.c
+++ b/crypto/mcryptd.c
@@ -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;
}
--
2.5.0



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