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[2620:137:e000::1:20]) by mx.google.com with ESMTP id i10-20020a17090332ca00b001a6b273fef3si11347789plr.442.2023.04.24.05.02.14; Mon, 24 Apr 2023 05:02:41 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b="KmEi/Dl5"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231438AbjDXLy5 (ORCPT + 99 others); Mon, 24 Apr 2023 07:54:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231669AbjDXLyz (ORCPT ); Mon, 24 Apr 2023 07:54:55 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 70383E45; Mon, 24 Apr 2023 04:54:54 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 10B9461268; Mon, 24 Apr 2023 11:54:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2FDFCC433EF; Mon, 24 Apr 2023 11:54:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1682337293; bh=CaWpXAtgfx+CPGyFGx7gzw+vOneOZlGJoqFS0co6xVE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KmEi/Dl5NeCDYA7IyZm16uyN8QDpyk5zJjIrZ3CFzKCPJ7vjOVUq8Nt/hvfo+cyDX ahLh6R/xe7y587kiNnJKp43xM+aGxleP7xlZ8y9mln871FxMh52eEuDJ1BUe9DXwyg VcI45VMw/XpJUvUzgXKYEj2X048uNSNo3iQ/lH8h5BWeyJbFC47q6mYn238OWXdXaB zpopPwKOX3nQpp6fhPsbCjmKo/CSV92zKQ4CfEi67Rlp/9UhPcSE4NCBJICj/vCnMn gi9WewF97o9MmUpw3WDHU0xrRDmdclrcPpQomEYBt0zpAfnfgtGuPzQ+CJlDZfn6lh N0fMUBF9kUJ7A== Date: Mon, 24 Apr 2023 12:54:48 +0100 From: Mark Brown To: Yingsha Xu Cc: Serge Semin , hust-os-kernel-patches@googlegroups.com, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] spi: remove return value check of debugfs_create_dir() Message-ID: References: <20230423061155.2540-1-ysxu@hust.edu.cn> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="vvx6pjyUAG9u5a+8" Content-Disposition: inline In-Reply-To: <20230423061155.2540-1-ysxu@hust.edu.cn> X-Cookie: A rolling disk gathers no MOS. X-Spam-Status: No, score=-7.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --vvx6pjyUAG9u5a+8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Apr 23, 2023 at 02:11:54PM +0800, Yingsha Xu wrote: > Smatch complains that: > dw_spi_debugfs_init() warn: 'dws->debugfs' is an error pointer > or valid >=20 > Debugfs checks are generally not supposed to be checked for errors > and it is not necessary here. >=20 > Just delete the dead code. This is very much a question of taste with a range of use cases available. --vvx6pjyUAG9u5a+8 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmRGbggACgkQJNaLcl1U h9B6Ugf/b159bWCAqJBwfw5277rkoMI9WDLRnmgIo3Vxh3dP0+K8N9LdFjsSsKiD HxQbnaIFTfMq/t9lzF0scd4xu/hGS/S/4QiljaA7xki1ZRVQ1/RPxU1GJb+eJd5c vMrP2ldgqWKTU4k6SEnzUx4UgyQJvPwx9doFyq1hGdfbClJl8I3gw6SROP/bIt1I 3lXhpNMr2OHofwiWSwsa7La2SHrnvb29sl+me0xyw3hpg5YF5KEVc7EIDyvfCOPb N/PV8QHCz9gGdiFp9qTTD+19FAHVe7iLbqkQ9luKWh0yFMMZpVKdSQbq6XjO96Ac Pc46PT48sZnKk3Ciiy6JLytfTonFIw== =dz1r -----END PGP SIGNATURE----- --vvx6pjyUAG9u5a+8--