From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 318EFC282DF for ; Fri, 19 Apr 2019 18:25:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 03566222AF for ; Fri, 19 Apr 2019 18:25:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726174AbfDSSQN (ORCPT ); Fri, 19 Apr 2019 14:16:13 -0400 Received: from sauhun.de ([88.99.104.3]:50518 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725992AbfDSSQM (ORCPT ); Fri, 19 Apr 2019 14:16:12 -0400 Received: from localhost (p5486CC46.dip0.t-ipconnect.de [84.134.204.70]) by pokefinder.org (Postfix) with ESMTPSA id E39C92E3578; Fri, 19 Apr 2019 20:16:09 +0200 (CEST) From: Wolfram Sang To: linux-watchdog@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Guenter Roeck , Wolfram Sang , Wim Van Sebroeck , linux-kernel@vger.kernel.org Subject: [PATCH v3 02/16] watchdog: add error messages when initializing timeout fails Date: Fri, 19 Apr 2019 20:15:47 +0200 Message-Id: <20190419181601.7412-3-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190419181601.7412-1-wsa+renesas@sang-engineering.com> References: <20190419181601.7412-1-wsa+renesas@sang-engineering.com> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org This not only removes boilerplate code from watchdog drivers, it can also be more specific which of the supplied value actually fails. Also, the loglevel becomes now consistent across drivers. Reviewed-by: Guenter Roeck Signed-off-by: Wolfram Sang --- drivers/watchdog/watchdog_core.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c index 21e53cc49977..62be9e52a4de 100644 --- a/drivers/watchdog/watchdog_core.c +++ b/drivers/watchdog/watchdog_core.c @@ -115,6 +115,8 @@ static void watchdog_check_min_max_timeout(struct watchdog_device *wdd) int watchdog_init_timeout(struct watchdog_device *wdd, unsigned int timeout_parm, struct device *dev) { + const char *dev_str = wdd->parent ? dev_name(wdd->parent) : + (const char *)wdd->info->identity; unsigned int t = 0; int ret = 0; @@ -126,6 +128,8 @@ int watchdog_init_timeout(struct watchdog_device *wdd, wdd->timeout = timeout_parm; return 0; } + pr_err("%s: driver supplied timeout (%u) out of range\n", + dev_str, timeout_parm); ret = -EINVAL; } @@ -136,9 +140,14 @@ int watchdog_init_timeout(struct watchdog_device *wdd, wdd->timeout = t; return 0; } + pr_err("%s: DT supplied timeout (%u) out of range\n", dev_str, t); ret = -EINVAL; } + if (ret < 0 && wdd->timeout) + pr_warn("%s: falling back to default timeout (%u)\n", dev_str, + wdd->timeout); + return ret; } EXPORT_SYMBOL_GPL(watchdog_init_timeout); -- 2.11.0