From patchwork Thu Jun 16 21:26:29 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Lezcano X-Patchwork-Id: 70229 Delivered-To: patch@linaro.org Received: by 10.140.28.4 with SMTP id 4csp465084qgy; Thu, 16 Jun 2016 14:30:30 -0700 (PDT) X-Received: by 10.36.218.68 with SMTP id z65mr11595133itg.19.1466112626719; Thu, 16 Jun 2016 14:30:26 -0700 (PDT) Return-Path: Received: from bombadil.infradead.org (bombadil.infradead.org. [2001:1868:205::9]) by mx.google.com with ESMTPS id g70si7965523pfb.119.2016.06.16.14.30.26 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 16 Jun 2016 14:30:26 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) client-ip=2001:1868:205::9; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@linaro.org; spf=pass (google.com: best guess record for domain of linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org designates 2001:1868:205::9 as permitted sender) smtp.mailfrom=linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org; dmarc=fail (p=NONE dis=NONE) header.from=linaro.org Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1bDeqr-0003lL-8K; Thu, 16 Jun 2016 21:29:25 +0000 Received: from mail-wm0-x22f.google.com ([2a00:1450:400c:c09::22f]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1bDeq0-0002yd-Qz for linux-arm-kernel@lists.infradead.org; Thu, 16 Jun 2016 21:28:35 +0000 Received: by mail-wm0-x22f.google.com with SMTP id a66so75534294wme.0 for ; Thu, 16 Jun 2016 14:28:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=mkV9/VxejUbj2suCfV7liB/IKD45rvLG2beUAaFMZeY=; b=S5nZ2YcdcM7HmLX+fzAtRgTpZtQHm3CjefXWyU1VSfuwhrBfJURti3c71yGnYNZbO5 RdWQ9cALt8oLL/USXwYbgauKz4Dy5Xdv66KY8eOWAkaIXekXZr873b6tso9qZTHE8CKK 1t3GZyAWm/PsM/ka40m9zOiKzD86h9cG4unfA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=mkV9/VxejUbj2suCfV7liB/IKD45rvLG2beUAaFMZeY=; b=aqf6Jag++GmNLwufl84mUq3GD1/kise9kLwapiFgJPuJCGULzHgiodJfk4zrLUlkj0 peK/u7XtmJ46MHsf9W0vKrbO/qmEoSjODghGJZ+bm6xdWqe2I8liFQ0Tp7KWtlzuTfi/ BHRf2z3DGI4QjrzWIC+sWDic0EY9gMmxJ2b7gaQI2cRIwIBoda/oJCtThxwKvZuoJF+n RLaVxh0NrJLfE3pf7aJCtkml79ewMg5uzMmXVvJcJTXF7jbpNMIJpdnwu0WpD3nzOb4M Wlre/CMPKFNRIJMafPBb1y1Sxr7k0GrXlFJvm2BszkN65hYpkc6oGZnYG8VGCmcwnuzi BI/A== X-Gm-Message-State: ALyK8tIOeWUNVZPKfL6i3dwR/lYb8k1sjMXkscuoHa4ENDn987EbzP/zgZC2S1YvRJp79vjs X-Received: by 10.28.152.211 with SMTP id a202mr6711194wme.60.1466112494015; Thu, 16 Jun 2016 14:28:14 -0700 (PDT) Received: from localhost.localdomain (sju31-1-78-210-255-2.fbx.proxad.net. [78.210.255.2]) by smtp.gmail.com with ESMTPSA id x128sm16705606wmf.6.2016.06.16.14.28.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 16 Jun 2016 14:28:12 -0700 (PDT) From: Daniel Lezcano To: daniel.lezcano@linaro.org, tglx@linutronix.de Subject: [PATCH V2 10/63] clocksource/drivers/clps711x: Convert init function to return error Date: Thu, 16 Jun 2016 23:26:29 +0200 Message-Id: <1466112442-31105-11-git-send-email-daniel.lezcano@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1466112442-31105-1-git-send-email-daniel.lezcano@linaro.org> References: <1466112442-31105-1-git-send-email-daniel.lezcano@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160616_142833_197037_CF219FA1 X-CRM114-Status: GOOD ( 13.72 ) X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [2a00:1450:400c:c09:0:0:0:22f listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "moderated list:ARM/CIRRUS LOGIC..." , linux-kernel@vger.kernel.org, Alexander Shiyan MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patch=linaro.org@lists.infradead.org The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano --- drivers/clocksource/clps711x-timer.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel diff --git a/drivers/clocksource/clps711x-timer.c b/drivers/clocksource/clps711x-timer.c index cdd86e3..3b66198 100644 --- a/drivers/clocksource/clps711x-timer.c +++ b/drivers/clocksource/clps711x-timer.c @@ -104,7 +104,7 @@ void __init clps711x_clksrc_init(void __iomem *tc1_base, void __iomem *tc2_base, } #ifdef CONFIG_CLKSRC_OF -static void __init clps711x_timer_init(struct device_node *np) +static int __init clps711x_timer_init(struct device_node *np) { unsigned int irq = irq_of_parse_and_map(np, 0); struct clk *clock = of_clk_get(np, 0); @@ -112,14 +112,12 @@ static void __init clps711x_timer_init(struct device_node *np) switch (of_alias_get_id(np, "timer")) { case CLPS711X_CLKSRC_CLOCKSOURCE: - BUG_ON(_clps711x_clksrc_init(clock, base)); - break; + return _clps711x_clksrc_init(clock, base); case CLPS711X_CLKSRC_CLOCKEVENT: - BUG_ON(_clps711x_clkevt_init(clock, base, irq)); - break; + return _clps711x_clkevt_init(clock, base, irq); default: - break; + return -EINVAL; } } -CLOCKSOURCE_OF_DECLARE(clps711x, "cirrus,clps711x-timer", clps711x_timer_init); +CLOCKSOURCE_OF_DECLARE_RET(clps711x, "cirrus,clps711x-timer", clps711x_timer_init); #endif