From patchwork Mon Apr 10 20:29:22 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 9674417 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 1F099600CB for ; Tue, 11 Apr 2017 01:04:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EE333284D8 for ; Tue, 11 Apr 2017 01:04:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E34C8284DD; Tue, 11 Apr 2017 01:04:35 +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,FREEMAIL_FROM, 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 68AC6284D8 for ; Tue, 11 Apr 2017 01:04:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 24D206E405; Tue, 11 Apr 2017 01:04:01 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.smtpout.orange.fr (smtp02.smtpout.orange.fr [80.12.242.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id D00606E3C1 for ; Mon, 10 Apr 2017 20:29:47 +0000 (UTC) Received: from localhost.localdomain ([92.140.231.172]) by mwinf5d49 with ME id 6kVh1v00Y3jptJL03kVi1v; Mon, 10 Apr 2017 22:29:44 +0200 X-ME-Helo: localhost.localdomain X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Mon, 10 Apr 2017 22:29:44 +0200 X-ME-IP: 92.140.231.172 From: Christophe JAILLET To: thierry.reding@gmail.com Subject: [PATCH] gpu: host1x: Fix error handling Date: Mon, 10 Apr 2017 22:29:22 +0200 Message-Id: <20170410202922.17665-1-christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.11.0 X-Mailman-Approved-At: Tue, 11 Apr 2017 01:03:57 +0000 Cc: linux-tegra@vger.kernel.org, Christophe JAILLET , kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP If 'devm_reset_control_get' returns an error, then we erroneously return success because error code is taken from 'host->clk' instead of 'host->rst'. Fixes: b386c6b73ac6 ("gpu: host1x: Support module reset") Signed-off-by: Christophe JAILLET Reviewed-by: Mikko Perttunen --- drivers/gpu/host1x/dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index f05ebb14fa63..ac65f52850a6 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -172,7 +172,7 @@ static int host1x_probe(struct platform_device *pdev) host->rst = devm_reset_control_get(&pdev->dev, "host1x"); if (IS_ERR(host->rst)) { - err = PTR_ERR(host->clk); + err = PTR_ERR(host->rst); dev_err(&pdev->dev, "failed to get reset: %d\n", err); return err; }