From patchwork Wed Jul 11 08:02:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Carpenter X-Patchwork-Id: 10519107 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 1464D6032A for ; Wed, 11 Jul 2018 08:02:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 075F628D0A for ; Wed, 11 Jul 2018 08:02:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EFDA528E06; Wed, 11 Jul 2018 08:02:47 +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=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY 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 ACAD628D0A for ; Wed, 11 Jul 2018 08:02:47 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BB3EE6E0C5; Wed, 11 Jul 2018 08:02:44 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from userp2120.oracle.com (userp2120.oracle.com [156.151.31.85]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8EA166E04A; Wed, 11 Jul 2018 08:02:42 +0000 (UTC) Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.22/8.16.0.22) with SMTP id w6B7wuRt023244; Wed, 11 Jul 2018 08:02:40 GMT Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2120.oracle.com with ESMTP id 2k2p7vd19y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 11 Jul 2018 08:02:40 +0000 Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id w6B82djo023216 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 11 Jul 2018 08:02:40 GMT Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id w6B82cAj007291; Wed, 11 Jul 2018 08:02:39 GMT Received: from kili.mountain (/197.157.34.168) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 11 Jul 2018 01:02:38 -0700 Date: Wed, 11 Jul 2018 11:02:28 +0300 From: Dan Carpenter To: Ben Skeggs Subject: [PATCH] drm/nouveau/hwmon: potential uninitialized variables Message-ID: <20180711080223.jktfeb4ofhqsv47a@kili.mountain> MIME-Version: 1.0 Content-Disposition: inline X-Mailer: git-send-email haha only kidding User-Agent: NeoMutt/20170113 (1.7.2) X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8950 signatures=668706 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=887 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1806210000 definitions=main-1807110086 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , nouveau@lists.freedesktop.org, kernel-janitors@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Smatch complains that "value" can be uninitialized when kstrtol() returns -ERANGE. Signed-off-by: Dan Carpenter diff --git a/drivers/gpu/drm/nouveau/nouveau_hwmon.c b/drivers/gpu/drm/nouveau/nouveau_hwmon.c index 44178b4c3599..08a1ab6b150d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_hwmon.c +++ b/drivers/gpu/drm/nouveau/nouveau_hwmon.c @@ -69,8 +69,8 @@ nouveau_hwmon_set_temp1_auto_point1_temp(struct device *d, struct nvkm_therm *therm = nvxx_therm(&drm->client.device); long value; - if (kstrtol(buf, 10, &value) == -EINVAL) - return count; + if (kstrtol(buf, 10, &value)) + return -EINVAL; therm->attr_set(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST, value / 1000); @@ -102,8 +102,8 @@ nouveau_hwmon_set_temp1_auto_point1_temp_hyst(struct device *d, struct nvkm_therm *therm = nvxx_therm(&drm->client.device); long value; - if (kstrtol(buf, 10, &value) == -EINVAL) - return count; + if (kstrtol(buf, 10, &value)) + return -EINVAL; therm->attr_set(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST, value / 1000); @@ -156,7 +156,7 @@ nouveau_hwmon_set_pwm1_min(struct device *d, struct device_attribute *a, long value; int ret; - if (kstrtol(buf, 10, &value) == -EINVAL) + if (kstrtol(buf, 10, &value)) return -EINVAL; ret = therm->attr_set(therm, NVKM_THERM_ATTR_FAN_MIN_DUTY, value); @@ -179,7 +179,7 @@ nouveau_hwmon_set_pwm1_max(struct device *d, struct device_attribute *a, long value; int ret; - if (kstrtol(buf, 10, &value) == -EINVAL) + if (kstrtol(buf, 10, &value)) return -EINVAL; ret = therm->attr_set(therm, NVKM_THERM_ATTR_FAN_MAX_DUTY, value);