From patchwork Fri Jan 25 10:15:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thierry Reding X-Patchwork-Id: 1030914 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="VdI4iTQV"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 43mFKV6kSzz9s4s for ; Fri, 25 Jan 2019 21:15:58 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728017AbfAYKP6 (ORCPT ); Fri, 25 Jan 2019 05:15:58 -0500 Received: from mail-wm1-f68.google.com ([209.85.128.68]:53857 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727959AbfAYKP6 (ORCPT ); Fri, 25 Jan 2019 05:15:58 -0500 Received: by mail-wm1-f68.google.com with SMTP id d15so6189609wmb.3; Fri, 25 Jan 2019 02:15:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1Ke2IPsE03IyucB6vV/gx6p370HSOpPiyyMFC8AjOCc=; b=VdI4iTQVfqaVp+98mSKz/Pb0FtLfGaTtlzhaZ4MRfQtP8euGJAkHMP4R4U4m26XrGq DgjBbcsfPQIPh3iKYUSvy4r6Yt/75lL9SaGVLeZ022IkWcqtSGqGMkckHPa+KcbcJQvB de104w/S5N8NwTruFndz+twNW6a262lInk/u3BUy1o7WqbuyJLoReRvexeZhfHyAIoXl maH8RwKn8TycrXLKK9+qBvOVWs6RIkeiasF+y/I82mqxcvQbx3SOMTe7slxgSifTyOJj QB9EOWv2GEcZHm6zZPVHm+vYgMptobx9vRcEtaEx42Qzk3qwHNHCzbaTAyy1NjpYK5NN KADw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1Ke2IPsE03IyucB6vV/gx6p370HSOpPiyyMFC8AjOCc=; b=YEp5nlhYCOR0A0gXq+uSYTs/+7d/XSROJYflEHHVOftn7T9qIDQUcCDCJAH+oUPKNA y/eqaZ80qFKpVxDBzdpT71ALCrrizK+HEU3cYdhrejiWPADeuPx3Uaqg2W7n58ncvOQU yDvv//bxMTIt48BImOl73ni/8Gw8GjSqo6gD2+HT/3fD5pNHOGP8DSxYWTOf20Qbb6/U BnJ2Ct1vlYtwX9WNyMUPLyNOjdY4pLylEdDVQ+fOmC1UZfhX8ON4qcgMsgINY1SCAvSQ C5nnew5XhXg+u5hibnH8/EV7uNcMCbuG3AByDP47IfTKk38h+xEXaZojhcF2XpMG91bo 4lZg== X-Gm-Message-State: AJcUukd8R2JkaO7QVN5tQHXPR6MjWuyXYeD5a4sFoehW/tQ+EX59C+dE iDghiNxDl28y3fADTSboho4= X-Google-Smtp-Source: ALg8bN6A6mUkjCApnYO0pNAZi4QxMg4VoQP1GhhM9x5ESEh3UNqBCj4+liobXPoEf796VtLGMltjXQ== X-Received: by 2002:a1c:de57:: with SMTP id v84mr6166649wmg.55.1548411356136; Fri, 25 Jan 2019 02:15:56 -0800 (PST) Received: from localhost (pD9E51040.dip0.t-ipconnect.de. [217.229.16.64]) by smtp.gmail.com with ESMTPSA id e16sm182548401wrn.72.2019.01.25.02.15.55 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 25 Jan 2019 02:15:55 -0800 (PST) From: Thierry Reding To: Philipp Zabel Cc: Jon Hunter , linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] reset: Don't WARN if trying to get a used reset control Date: Fri, 25 Jan 2019 11:15:54 +0100 Message-Id: <20190125101554.5947-1-thierry.reding@gmail.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org From: Thierry Reding When requesting a reset control for exclusive use that's already in use, an -EBUSY error code is returned. Users can react accordingly when they receive that error code, so there is no need to loudly complain. Signed-off-by: Thierry Reding Signed-off-by: Philipp Zabel --- drivers/reset/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/reset/core.c b/drivers/reset/core.c index 9582efb70025..6b452f010b66 100644 --- a/drivers/reset/core.c +++ b/drivers/reset/core.c @@ -416,7 +416,7 @@ static struct reset_control *__reset_control_get_internal( list_for_each_entry(rstc, &rcdev->reset_control_head, list) { if (rstc->id == index) { - if (WARN_ON(!rstc->shared || !shared)) + if (!rstc->shared || !shared) return ERR_PTR(-EBUSY); kref_get(&rstc->refcnt);