From patchwork Wed Mar 9 00:27:45 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kamal Mostafa X-Patchwork-Id: 594659 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) by ozlabs.org (Postfix) with ESMTP id 4E8F214031D; Wed, 9 Mar 2016 11:37:14 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1adS7i-0001AH-Iu; Wed, 09 Mar 2016 00:37:10 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1adS2A-0006lT-Pw for kernel-team@lists.ubuntu.com; Wed, 09 Mar 2016 00:31:26 +0000 Received: from 1.general.kamal.us.vpn ([10.172.68.52] helo=fourier) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.76) (envelope-from ) id 1adS2A-0003Aa-6v; Wed, 09 Mar 2016 00:31:26 +0000 Received: from kamal by fourier with local (Exim 4.86) (envelope-from ) id 1adS27-0007uP-IQ; Tue, 08 Mar 2016 16:31:23 -0800 From: Kamal Mostafa To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Subject: [PATCH 3.19.y-ckt 007/196] drm/vmwgfx: Fix an fb unlocking bug Date: Tue, 8 Mar 2016 16:27:45 -0800 Message-Id: <1457483454-30115-8-git-send-email-kamal@canonical.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1457483454-30115-1-git-send-email-kamal@canonical.com> References: <1457483454-30115-1-git-send-email-kamal@canonical.com> X-Extended-Stable: 3.19 Cc: Thomas Hellstrom , Kamal Mostafa X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.14 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: kernel-team-bounces@lists.ubuntu.com 3.19.8-ckt16 -stable review patch. If anyone has any objections, please let me know. ---8<------------------------------------------------------------ From: Thomas Hellstrom commit 12617971c443c50750a12a77ea0e08319d161975 upstream. A regression introduced when the master ttm lock was split into two. Reported-and-tested-by: Brian Paul Signed-off-by: Thomas Hellstrom Reviewed-by: Brian Paul Signed-off-by: Kamal Mostafa --- drivers/gpu/drm/vmwgfx/vmwgfx_fb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c index 0a474f3..e2d40eb 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c @@ -402,12 +402,12 @@ static int vmw_fb_create_bo(struct vmw_private *vmw_priv, *out = vmw_bo; - ttm_write_unlock(&vmw_priv->fbdev_master.lock); + ttm_write_unlock(&vmw_priv->reservation_sem); return 0; err_unlock: - ttm_write_unlock(&vmw_priv->fbdev_master.lock); + ttm_write_unlock(&vmw_priv->reservation_sem); return ret; }