Message ID | 20200302222631.3861340-3-daniel.vetter@ffwll.ch (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=gUD/=4T=lists.freedesktop.org=intel-gfx-bounces@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9ACBF1580 for <patchwork-intel-gfx@patchwork.kernel.org>; Mon, 2 Mar 2020 22:26:53 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 78DDA20866 for <patchwork-intel-gfx@patchwork.kernel.org>; Mon, 2 Mar 2020 22:26:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ffwll.ch header.i=@ffwll.ch header.b="EBzm1UzG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 78DDA20866 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ffwll.ch Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B3A246E862; Mon, 2 Mar 2020 22:26:45 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by gabe.freedesktop.org (Postfix) with ESMTPS id BD4806E861 for <intel-gfx@lists.freedesktop.org>; Mon, 2 Mar 2020 22:26:44 +0000 (UTC) Received: by mail-wr1-x441.google.com with SMTP id v4so1845095wrs.8 for <intel-gfx@lists.freedesktop.org>; Mon, 02 Mar 2020 14:26:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=SEx0yhuE5cScKXaCEVNrk3SBemRwVMwmgNM6/6Cje8Y=; b=EBzm1UzGbqy2VRtggiY723Q19CNjZhDjzHgXZJGWqH1uCMn5DErwf6romcNLe+C4Mb O52j8lr2HMlCafoB2zYVFM5c3xM5oNiHRf/X3QQWp2k/DOBHoEhy4o5rOCeYYc1TUe/4 n8WJC0PQOc3XrIOkB6B4DGlTdYBnwbrdRyEZI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=SEx0yhuE5cScKXaCEVNrk3SBemRwVMwmgNM6/6Cje8Y=; b=C36fQ17tWhna2ecwTLm4w9Ok3PWMC+eBLTg3maRDx95JAcwqTJgg0a/Vw7s2n5rPjY 4nE/2DEqlkqS2foyeTd0+DmzLegj79kjXy8ITVE/58mgnIvB9O+8mqAIKPZwxpgNjrCN 6Cpp5UWfKGWvz0f5kLx3X2NIiIz73mcdejExQQt2pXB11V+Hcp5DyT2DxurhUwL4trfB lDdSmaL7VZPhUSwakPd2dwP4p0TBRpU8zB0IC1Uv4csUsn+Tkua9r61QYE4EtW7a1d2o RNV2tZ9QZvva4yDopzRfE485rO1dePxDi5ilgC9c2dmZ/HzdI7ITUDOUaB2BeYTp5W7B NMaw== X-Gm-Message-State: ANhLgQ1wCxZ2LDICYAv/wsa6A6f04CXljzFNrAyRxUBAhTAr4IvGZNkV bAqhm0UHGZcZG18Mp069QapySg== X-Google-Smtp-Source: ADFU+vutr6RAp596P9k5KhUX4GAr8w/IxrjFC5Om0eqE5/OCizgq4YjuMdLAQQL7APJywJ7D8FQilg== X-Received: by 2002:adf:fd11:: with SMTP id e17mr1463045wrr.195.1583188003522; Mon, 02 Mar 2020 14:26:43 -0800 (PST) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id o18sm26114589wrv.60.2020.03.02.14.26.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Mar 2020 14:26:42 -0800 (PST) From: Daniel Vetter <daniel.vetter@ffwll.ch> To: DRI Development <dri-devel@lists.freedesktop.org> Date: Mon, 2 Mar 2020 23:25:42 +0100 Message-Id: <20200302222631.3861340-3-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200302222631.3861340-1-daniel.vetter@ffwll.ch> References: <20200302222631.3861340-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 02/51] drm/i915: Don't clear drvdata in ->release X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development <intel-gfx.lists.freedesktop.org> List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>, <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe> List-Archive: <https://lists.freedesktop.org/archives/intel-gfx> List-Post: <mailto:intel-gfx@lists.freedesktop.org> List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help> List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>, <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe> Cc: Daniel Vetter <daniel.vetter@intel.com>, Daniel Vetter <daniel.vetter@ffwll.ch>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org> |
Series |
drm_device managed resources, v4
|
expand
|
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index e7c339255de5..5997b4507f29 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -914,9 +914,6 @@ static void i915_driver_destroy(struct drm_i915_private *i915) drm_dev_fini(&i915->drm); kfree(i915); - - /* And make sure we never chase our dangling pointer from pci_dev */ - pci_set_drvdata(pdev, NULL); } /**
For two reasons: - The driver core clears this already for us after we're unloaded in __device_release_driver(). - It's way too late, the drm_device ->release callback might massively outlive the underlying physical device, since a drm_device can't be kept alive by open drm_file or well really anything else userspace is still hanging onto. So if we clear this ourselves, we should clear it in the pci ->remove callback, not in the drm_device ->relase callback. Looking at git history this was fixed in the driver core with commit 0998d0631001288a5974afc0b2a5f568bcdecb4d Author: Hans de Goede <hdegoede@redhat.com> Date: Wed May 23 00:09:34 2012 +0200 device-core: Ensure drvdata = NULL when no driver is bound v2: Cite the core fix in the commit message (Chris). Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> --- drivers/gpu/drm/i915/i915_drv.c | 3 --- 1 file changed, 3 deletions(-)