From patchwork Sat Feb 23 13:20:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julia Lawall X-Patchwork-Id: 10827515 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7BB426C2 for ; Sat, 23 Feb 2019 13:59:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 680702EA53 for ; Sat, 23 Feb 2019 13:59:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5C51B2EA54; Sat, 23 Feb 2019 13:59:36 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 09E372EA5D for ; Sat, 23 Feb 2019 13:59:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728000AbfBWN6w (ORCPT ); Sat, 23 Feb 2019 08:58:52 -0500 Received: from mail2-relais-roc.national.inria.fr ([192.134.164.83]:17560 "EHLO mail2-relais-roc.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727967AbfBWN6v (ORCPT ); Sat, 23 Feb 2019 08:58:51 -0500 X-IronPort-AV: E=Sophos;i="5.58,403,1544482800"; d="scan'208";a="370609505" Received: from palace.lip6.fr ([132.227.105.202]) by mail2-relais-roc.national.inria.fr with ESMTP/TLS/AES128-SHA256; 23 Feb 2019 14:58:44 +0100 From: Julia Lawall To: Bartlomiej Zolnierkiewicz Cc: kernel-janitors@vger.kernel.org, linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 06/12] omapfb: add missing of_node_put after of_device_is_available Date: Sat, 23 Feb 2019 14:20:37 +0100 Message-Id: <1550928043-14889-7-git-send-email-Julia.Lawall@lip6.fr> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1550928043-14889-1-git-send-email-Julia.Lawall@lip6.fr> References: <1550928043-14889-1-git-send-email-Julia.Lawall@lip6.fr> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add an of_node_put when a tested device node is not available. The semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // @@ identifier f; local idexpression e; expression x; @@ e = f(...); ... when != of_node_put(e) when != x = e when != e = x when any if (<+...of_device_is_available(e)...+>) { ... when != of_node_put(e) ( return e; | + of_node_put(e); return ...; ) } // Fixes: f76ee892a99e6 ("omapfb: copy omapdss & displays for omapfb") Signed-off-by: Julia Lawall --- drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -u -p a/drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c b/drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c --- a/drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/omapdss-boot-init.c @@ -193,8 +193,10 @@ static int __init omapdss_boot_init(void dss = of_find_matching_node(NULL, omapdss_of_match); - if (dss == NULL || !of_device_is_available(dss)) + if (dss == NULL || !of_device_is_available(dss)) { + of_node_put(dss); return 0; + } omapdss_walk_device(dss, true);