From 08346170d4483d58b8971fe9ff2a1318fd93d121 Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Mon, 16 Nov 2015 22:37:15 +0800 Subject: [PATCH] crypto: mcryptd - use list_first_entry_or_null() Simplify mcryptd_opportunistic_flush() with list_first_entry_or_null(). Signed-off-by: Geliang Tang Signed-off-by: Herbert Xu --- crypto/mcryptd.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/crypto/mcryptd.c b/crypto/mcryptd.c index fe5b495a434d..f78d4fc4e38a 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; } -- 2.20.1