Message ID | 20220526235040.678984-6-dmitry.osipenko@collabora.com (mailing list archive) |
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State | Not Applicable |
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Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from <linux-media-owner@vger.kernel.org>) id 1nuNJO-00Bh3e-6z; Thu, 26 May 2022 23:54:38 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349620AbiEZXyg (ORCPT <rfc822;mkrufky@linuxtv.org> + 1 other); Thu, 26 May 2022 19:54:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349619AbiEZXyd (ORCPT <rfc822;linux-media@vger.kernel.org>); Thu, 26 May 2022 19:54:33 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79221D6829; Thu, 26 May 2022 16:54:25 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: dmitry.osipenko) with ESMTPSA id 874411F409DA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1653609264; bh=S5lPIOkFBZ/pxkGf3spJfxaVtSGwy0y8jmdOsiAMgdc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Lg62DDh21vtmkdIS8xg6XG5/5n+/FkMQv6yZUvNboK4hEgCbL5z172KDGIXNi8qCW w23AGO/Wp1pfJUwN+TRwVvu/hKAD9bRftGl8r0EiZ8uelJoxeg5y6cREYkrk6mpKD2 BNpSZI58w/DauiFQ0rE30zrNr/LAkKkUR2ZSopplZ6eGAw5GgLEwIfKM6iknDVZ+n1 eLrn5re2tv478zMT5HSTum8cHePRcWFV0K7oZ0fG7bnZt9Ykcr+uYtRisDSVhOZHsL mD3woWmqFPrJRAtMV3SJHPWk7+lNthgUecjl23OO+1L9CpKIvpwJ7JS8oyFU+iu8gg LhuBMhFoETsVQ== From: Dmitry Osipenko <dmitry.osipenko@collabora.com> To: David Airlie <airlied@linux.ie>, Gerd Hoffmann <kraxel@redhat.com>, Gurchetan Singh <gurchetansingh@chromium.org>, Chia-I Wu <olvaffe@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Daniel Almeida <daniel.almeida@collabora.com>, Gert Wollny <gert.wollny@collabora.com>, Gustavo Padovan <gustavo.padovan@collabora.com>, Daniel Stone <daniel@fooishbar.org>, Tomeu Vizoso <tomeu.vizoso@collabora.com>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, Rob Herring <robh@kernel.org>, Steven Price <steven.price@arm.com>, Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>, Rob Clark <robdclark@gmail.com>, Emil Velikov <emil.l.velikov@gmail.com>, Robin Murphy <robin.murphy@arm.com>, Qiang Yu <yuq825@gmail.com>, Sumit Semwal <sumit.semwal@linaro.org>, =?utf-8?q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>, "Pan, Xinhui" <Xinhui.Pan@amd.com>, Thierry Reding <thierry.reding@gmail.com>, Tomasz Figa <tfiga@chromium.org>, Marek Szyprowski <m.szyprowski@samsung.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Alex Deucher <alexander.deucher@amd.com>, Jani Nikula <jani.nikula@linux.intel.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Dmitry Osipenko <digetx@gmail.com>, Dmitry Osipenko <dmitry.osipenko@collabora.com>, linux-tegra@vger.kernel.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, kernel@collabora.com Subject: [PATCH v6 05/22] drm/virtio: Correct drm_gem_shmem_get_sg_table() error handling Date: Fri, 27 May 2022 02:50:23 +0300 Message-Id: <20220526235040.678984-6-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220526235040.678984-1-dmitry.osipenko@collabora.com> References: <20220526235040.678984-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY 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: <linux-media.vger.kernel.org> X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no |
Series |
Add generic memory shrinker to VirtIO-GPU and Panfrost DRM drivers
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Commit Message
Dmitry Osipenko
May 26, 2022, 11:50 p.m. UTC
drm_gem_shmem_get_sg_table() never ever returned NULL on error. Correct the error handling to avoid crash on OOM. Cc: stable@vger.kernel.org Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> --- drivers/gpu/drm/virtio/virtgpu_object.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index f293e6ad52da..3d0c8d4d1c20 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -168,9 +168,11 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev, * since virtio_gpu doesn't support dma-buf import from other devices. */ shmem->pages = drm_gem_shmem_get_sg_table(&bo->base); - if (!shmem->pages) { + ret = PTR_ERR_OR_ZERO(shmem->pages); + if (ret) { drm_gem_shmem_unpin(&bo->base); - return -EINVAL; + shmem->pages = NULL; + return ret; } if (use_dma_api) {