From patchwork Thu Mar 22 15:22:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ville Syrjala X-Patchwork-Id: 10301697 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8DAA360216 for ; Thu, 22 Mar 2018 15:24:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7C5A32860A for ; Thu, 22 Mar 2018 15:24:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6FC8A28617; Thu, 22 Mar 2018 15:24:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 36DC32860A for ; Thu, 22 Mar 2018 15:24:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 46F076EC81; Thu, 22 Mar 2018 15:23:51 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6D60E6EC81; Thu, 22 Mar 2018 15:23:48 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Mar 2018 08:23:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,345,1517904000"; d="scan'208";a="26670040" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by fmsmga008.fm.intel.com with SMTP; 22 Mar 2018 08:23:45 -0700 Received: by stinkbox (sSMTP sendmail emulation); Thu, 22 Mar 2018 17:23:45 +0200 From: Ville Syrjala To: dri-devel@lists.freedesktop.org Date: Thu, 22 Mar 2018 17:22:57 +0200 Message-Id: <20180322152313.6561-8-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.16.1 In-Reply-To: <20180322152313.6561-1-ville.syrjala@linux.intel.com> References: <20180322152313.6561-1-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 07/23] drm: Make the fb refcount handover less magic X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Ville Syrjälä Instead of assigning the plane->fb pointer and clearing the fb pointer to hand over the reference, let's just do it by grabbing another referece for plane->fb and let fb keep its original one. Signed-off-by: Ville Syrjälä Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_plane.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index bedceca7dd06..008f9456a5e8 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -1084,8 +1084,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, plane->old_fb = NULL; } else { plane->fb = fb; - /* Unref only the old framebuffer. */ - fb = NULL; + drm_framebuffer_get(fb); } out: