crypto: essiv - remove redundant null pointer check before kfree

kfree has taken null pointer check into account. so it is safe to
remove the unnecessary check.

Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/crypto/essiv.c b/crypto/essiv.c
index fc248de..808f2b3 100644 (file)
--- a/crypto/essiv.c
+++ b/crypto/essiv.c
@@ -188,8 +188,7 @@ static void essiv_aead_done(struct crypto_async_request *areq, int err)
        struct aead_request *req = areq->data;
        struct essiv_aead_request_ctx *rctx = aead_request_ctx(req);
 
-       if (rctx->assoc)
-               kfree(rctx->assoc);
+       kfree(rctx->assoc);
        aead_request_complete(req, err);
 }