From patchwork Mon Jul 31 16:54:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 13335046 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6480C001DE for ; Mon, 31 Jul 2023 16:55:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233583AbjGaQzU (ORCPT ); Mon, 31 Jul 2023 12:55:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233571AbjGaQzT (ORCPT ); Mon, 31 Jul 2023 12:55:19 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 84B6A1998 for ; Mon, 31 Jul 2023 09:55:13 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qQWAk-0006a2-1i; Mon, 31 Jul 2023 18:55:06 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qQWAf-000AQY-St; Mon, 31 Jul 2023 18:55:01 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qQWAe-009NYj-T5; Mon, 31 Jul 2023 18:55:00 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Herbert Xu , "David S. Miller" , Maxime Coquelin , Alexandre Torgue , Linus Walleij , Thomas Bourgoin , Lionel Debieve Cc: linux-crypto@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH 2/3] crypto: stm32/hash - Drop if block with always false condition Date: Mon, 31 Jul 2023 18:54:55 +0200 Message-Id: <20230731165456.799784-3-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230731165456.799784-1-u.kleine-koenig@pengutronix.de> References: <20230731165456.799784-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1139; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=ytR44w6YRN9/39C6QY8fX1uvrs6YC4VRP3jW0CSfK4E=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkx+dbulbrGasJLiVz+QSlpZN4aNuwRTOthCnUy sBwL75kSTuJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZMfnWwAKCRCPgPtYfRL+ TotlCACW/Am2SIw1H/thaOKdb64wke3z0Pp6zVWWJNvJGpJanowdIrFAMxrzcXg9pjiGhMhuzyZ vuKHdeoerW8Alwor3VD/eBFOXvN6w5UH1cc/FbbE3P9qP3H46vR3K+VrapKrrDn6HsN3O1QMDwO Ukc0d97RLSiQ0Im7gZFJIDh9ZjamnKdqEQPf5Kwy99Negw29L7hbfCveYP3d2SvzBoy9PU1YCRG RQtphDBAuo9oVEMn7St+5V+BB14XlB/d265qyMz88zrPy80y/lWkpWI57b3ELXJIny+dIKghWfP SjoWJLt5gQBEPZ2ybOqBa+9ihwtnEf3eDeakwmeLgxnqT9jB X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-crypto@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org stm32_hash_remove() is only called after stm32_hash_probe() succeeded. In this case platform_set_drvdata() was called with a non-NULL data patameter. The check for hdev being non-NULL can be dropped because hdev is never NULL (or something bad like memory corruption happened and then the check doesn't help any more either). Signed-off-by: Uwe Kleine-König --- drivers/crypto/stm32/stm32-hash.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c index 75d281edae2a..b10243035584 100644 --- a/drivers/crypto/stm32/stm32-hash.c +++ b/drivers/crypto/stm32/stm32-hash.c @@ -2114,13 +2114,9 @@ static int stm32_hash_probe(struct platform_device *pdev) static int stm32_hash_remove(struct platform_device *pdev) { - struct stm32_hash_dev *hdev; + struct stm32_hash_dev *hdev = platform_get_drvdata(pdev); int ret; - hdev = platform_get_drvdata(pdev); - if (!hdev) - return -ENODEV; - ret = pm_runtime_get_sync(hdev->dev); stm32_hash_unregister_algs(hdev);