From mboxrd@z Thu Jan 1 00:00:00 1970 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 4F063C433EF for ; Thu, 30 Jun 2022 20:08:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237071AbiF3UIF (ORCPT ); Thu, 30 Jun 2022 16:08:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237040AbiF3UH7 (ORCPT ); Thu, 30 Jun 2022 16:07:59 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 633574506F for ; Thu, 30 Jun 2022 13:07:58 -0700 (PDT) Received: from dimapc.. (109-252-118-164.nat.spd-mgts.ru [109.252.118.164]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dmitry.osipenko) by madras.collabora.co.uk (Postfix) with ESMTPSA id 4B15A660198A; Thu, 30 Jun 2022 21:07:56 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1656619677; bh=GeAjvmf+urVtW31vmebmoRtvHFY653QOqua5mOTvkSs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VbB4ZOCJC+c+Y/MR1xX3Oav+CB3vQfwwq4q/RdEi0jvay8fgzvzUCDZf0e49O9Z5X LHgCCiTRvH+jN3odtLCMFtJF7vp+Qf7GKfoAfXwvrWyL+CCHj8hsogZeq7PItfADsI HUh9uEL1gj78ULc90Gia8fj8lq3jr55eN2jhgEPVhYCL33FQnTwP7CfrjbbuRO7+d3 GchOKe/FW+RI6p5cxIuKntlY3U8gM3TUc14g4t0zD3cD4jm6+uhFmAkn9ZKAA14IJA iXdpDJu5o2ZcHZtRMamoxPgkTV6gPsflXAjrLMHsZ+bFKElk0OKsanY15M8w4RoL3j wz4ZhXWwEBplw== From: Dmitry Osipenko To: David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , Daniel Vetter , Thomas Zimmermann , Emil Velikov , Robin Murphy , =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Dmitry Osipenko , kernel@collabora.com Subject: [PATCH v7 4/9] drm/virtio: Unlock reservations on dma_resv_reserve_fences() error Date: Thu, 30 Jun 2022 23:07:21 +0300 Message-Id: <20220630200726.1884320-5-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220630200726.1884320-1-dmitry.osipenko@collabora.com> References: <20220630200726.1884320-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Unlock reservations on dma_resv_reserve_fences() error to fix recursive locking of the reservations when this error happens. Cc: stable@vger.kernel.org Fixes: c8d4c18bfbc4 ("dma-buf/drivers: make reserving a shared slot mandatory v4") Reviewed-by: Thomas Hellström Signed-off-by: Dmitry Osipenko --- drivers/gpu/drm/virtio/virtgpu_gem.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c index 580a78809836..7db48d17ee3a 100644 --- a/drivers/gpu/drm/virtio/virtgpu_gem.c +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c @@ -228,8 +228,10 @@ int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs) for (i = 0; i < objs->nents; ++i) { ret = dma_resv_reserve_fences(objs->objs[i]->resv, 1); - if (ret) + if (ret) { + virtio_gpu_array_unlock_resv(objs); return ret; + } } return ret; } -- 2.36.1