From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krzysztof Kozlowski Subject: [PATCH 1/4] crypto: omap-sham: Remove useless check for non-null request Date: Thu, 1 Mar 2018 21:50:10 +0100 Message-ID: <1519937413-24468-1-git-send-email-krzk@kernel.org> To: Herbert Xu , "David S. Miller" , Krzysztof Kozlowski , Vladimir Zapolskiy , Kamil Konieczny , Tero Kristo , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org ahash_request 'req' argument passed by the caller omap_sham_handle_queue() cannot be NULL here because it is obtained from non-NULL pointer via container_of(). This fixes smatch warning: drivers/crypto/omap-sham.c:812 omap_sham_prepare_request() warn: variable dereferenced before check 'req' (see line 805) Signed-off-by: Krzysztof Kozlowski --- drivers/crypto/omap-sham.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index 86b89ace836f..7650b1b449bb 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -809,9 +809,6 @@ static int omap_sham_prepare_request(struct ahash_request *req, bool update) bool final = rctx->flags & BIT(FLAGS_FINUP); int xmit_len, hash_later; - if (!req) - return 0; - bs = get_block_size(rctx); if (update) -- 2.7.4