Received: by 2002:a05:6a10:a841:0:0:0:0 with SMTP id d1csp4765647pxy; Tue, 27 Apr 2021 12:04:56 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzQv96A7I5W0955BTBc6M7/SFZZpAaoFnYXxmPDcg8MwJBVFPPGBT00HgLMwTvZX7Su7g1r X-Received: by 2002:a05:6402:1a:: with SMTP id d26mr6298892edu.99.1619550296279; Tue, 27 Apr 2021 12:04:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1619550296; cv=none; d=google.com; s=arc-20160816; b=QJzT22dTtBRjYa5+b7gBVtuj5DigI9XofrqEYxjWBKEZbRLFgWryxuc/JEUicWgdUv yeX0mkYrXCh+xr/hoAoYPItnHwZOJft+LUvokr1BleYjWV5nnzT2ZBTsQdXB3sjKWVaC tqn/7xOBKkP1pAdl3QEuiC12WV/GqkyEvIAqnYN93IUtYrvDsdhQMOlilf2u8XikNVzW riTlXIP2rV+i/Z6LzYZ8J4jSN4dKhTBrSiBjUqUnQou0Vej6PgTq9I5lANYMc2GryyWw /qphr4vLmf142I1aK/+lsqgD+VZI0aqIvk8GUMRuh95LdjzphZnD+RERl8pnNo0QGt3o EubQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject:dkim-signature; bh=blbsU2VaQ1Txzazpfs8Lbj3gD5i2h5xwjqr7pFg9cUw=; b=BkbtxZt3yyzKahoQSu1KlRRYhLZwqWXZbwF2jPU9klDYMpc5pVmbwesbTJ0W9aMuLZ 7uc/Hh2HhhnQN4WtM8JhwLEbFJ5BA90ir/foxTT1oNQg3fG+LgmsnOlwyHJ6Na+rkA4t atjFtnL6Zo4M9C0A6dCJBM4qRvnWH3P4XG9HEPOUxlyGCa+0YGimlsBZDFX/hQ20lbd3 rLn22EDpxklPtn1SiDXFxx13UnNxhQYDhQHTvxVmsUxLSNu+NoI3XiAEs5ZC4GVO40ee 4yKwT2W6PKGMMKMdr2Hi3fPypaZmhDN9hO+KA6IN+jrMqdqhE6y1AzseyHNikIBdTSYg 6dxA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=NfAfKGiG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id o19si3235276edc.529.2021.04.27.12.04.32; Tue, 27 Apr 2021 12:04:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=NfAfKGiG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 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 S236658AbhD0TEO (ORCPT + 99 others); Tue, 27 Apr 2021 15:04:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:43564 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230219AbhD0TEN (ORCPT ); Tue, 27 Apr 2021 15:04:13 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id BCDF4613EA; Tue, 27 Apr 2021 19:03:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1619550210; bh=LgogxfRraKrP6lC0pv8P+3VyNYszFCRRBcn/VtBnwiw=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=NfAfKGiG2q0TE9zyb5VOwhfbj1QvgOCu+heNdCy9JX4Hh6Y17SJzfFBUVuwXfVDMw nvzuA3VbVTMjBCwZRLUuOhi8Q7f9yYSIrbdj85cOgeLgARw19XDl0ybi875z73IG0y 9jChvhoDd9Zat3ZwV0DMOwMinAkvVRT45U3gDWW2HBd6FykdZXmS+vFpeIadt7xVBU nLWFcWSrN3eCAH0nfK/lj5ftiJHgx72qrSs3e9Uv+1lyu0/dARsjlssuXWbw4OlVu8 6st6uHj5x1vWu93sq44q3Zro2YP1Z314XM3Q/lI4D9DnwFGm2Cq0LhEMKsg5jofO2x Fzmy3lW6Mhyzg== Subject: Re: [PATCH 162/190] Revert "dmaengine: qcom_hidma: Check for driver register failure" To: Greg Kroah-Hartman , linux-kernel@vger.kernel.org Cc: Aditya Pakki , Vinod Koul References: <20210421130105.1226686-1-gregkh@linuxfoundation.org> <20210421130105.1226686-163-gregkh@linuxfoundation.org> From: Sinan Kaya Message-ID: <811891cb-8749-152d-84ff-ed925e278f0f@kernel.org> Date: Tue, 27 Apr 2021 15:03:28 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/27/2021 10:47 AM, Greg Kroah-Hartman wrote: > The original change is NOT correct, as it does not correctly unwind from > the resources that was allocated before the call to > platform_driver_register(). > > As platform_driver_register() should never really fail here, I'll just > revert this patch and maybe someone, if they care about this driver, can > unwind the mess here. Given that this driver doesn't look to ever be > able to be unloaded from the system, failing the init call does not look > to be a wise idea. Please go ahead. I was out-of-office for the last few days.