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15 Dec 2015 10:17:42 +0900 Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=kuninori.morimoto.gx@renesas.com; Received: from morimoto-PC.renesas.com (211.11.155.144) by SIXPR06MB1023.apcprd06.prod.outlook.com (10.160.240.28) with Microsoft SMTP Server (TLS) id 15.1.355.16; Tue, 15 Dec 2015 01:17:40 +0000 Message-ID: <87a8pcqzqq.wl%kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto Subject: [PATCH 2/8 v5] thermal: rcar: check every rcar_thermal_update_temp() return value User-Agent: Wanderlust/2.15.9 Emacs/24.3 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") To: Simon , Zhang Rui , Eduardo Valentin CC: Geert Uytterhoeven , Magnus , , , , "devicetree@vger.kernel.org" In-Reply-To: <87d1u8qzsy.wl%kuninori.morimoto.gx@renesas.com> References: <87d1u8qzsy.wl%kuninori.morimoto.gx@renesas.com> Date: Tue, 15 Dec 2015 01:17:40 +0000 X-Originating-IP: [211.11.155.144] X-ClientProxiedBy: HKXPR03CA0034.apcprd03.prod.outlook.com (10.141.129.24) To SIXPR06MB1023.apcprd06.prod.outlook.com (25.160.240.28) X-Microsoft-Exchange-Diagnostics: 1; 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And also, rcar_thermal_get_temp() always call rcar_thermal_update_temp() by this patch. Signed-off-by: Kuninori Morimoto --- v4 -> v5 - rcar_thermal_get_temp() calls rcar_thermal_update_temp() without checking rcar_has_irq_support() drivers/thermal/rcar_thermal.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index ac8d1eb..0b19743 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -75,12 +75,6 @@ struct rcar_thermal_priv { #define rcar_has_irq_support(priv) ((priv)->common->base) #define rcar_id_to_shift(priv) ((priv)->id * 8) -#ifdef DEBUG -# define rcar_force_update_temp(priv) 1 -#else -# define rcar_force_update_temp(priv) 0 -#endif - static const struct of_device_id rcar_thermal_dt_ids[] = { { .compatible = "renesas,rcar-thermal", }, {}, @@ -209,9 +203,11 @@ err_out_unlock: static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp) { struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone); + int ret; - if (!rcar_has_irq_support(priv) || rcar_force_update_temp(priv)) - rcar_thermal_update_temp(priv); + ret = rcar_thermal_update_temp(priv); + if (ret < 0) + return ret; mutex_lock(&priv->lock); *temp = MCELSIUS((priv->ctemp * 5) - 65); @@ -305,11 +301,15 @@ static void rcar_thermal_work(struct work_struct *work) { struct rcar_thermal_priv *priv; int cctemp, nctemp; + int ret; priv = container_of(work, struct rcar_thermal_priv, work.work); rcar_thermal_get_temp(priv->zone, &cctemp); - rcar_thermal_update_temp(priv); + ret = rcar_thermal_update_temp(priv); + if (ret < 0) + return; + rcar_thermal_irq_enable(priv); rcar_thermal_get_temp(priv->zone, &nctemp); @@ -427,7 +427,9 @@ static int rcar_thermal_probe(struct platform_device *pdev) mutex_init(&priv->lock); INIT_LIST_HEAD(&priv->list); INIT_DELAYED_WORK(&priv->work, rcar_thermal_work); - rcar_thermal_update_temp(priv); + ret = rcar_thermal_update_temp(priv); + if (ret < 0) + goto error_unregister; priv->zone = thermal_zone_device_register("rcar_thermal", 1, 0, priv,