From patchwork Fri Nov 8 04:47:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: zhangjiao2 X-Patchwork-Id: 13867613 Received: from cmccmta1.chinamobile.com (cmccmta6.chinamobile.com [111.22.67.139]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 243BBEBE; Fri, 8 Nov 2024 06:39:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=111.22.67.139 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731047975; cv=none; b=CB40j5S0JD1H2d0MvR00NCTbVhmD1hwH133JBb+XSh3DVm370ZChJ8L7B8Dz0zghS3ydV8dGtn0BWKVUX/flUBU+ODBJN3XpviOGc9cHNog/a1cs6Nu/Ie2RO4/mM8WPfOU7l2fZkuKMrP+xq5YGA68dmi4cUcfgha/M56+JCAE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731047975; c=relaxed/simple; bh=Y267l0BUqqgJmxGvfXbT0PmHmIKaH+mSx4D3GnoS1zk=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=rX1L8DPV7AgYI1ZQTW4+JbASfCG7PSZRTslxU530bEGpYB5crcmN2onjupBVxEunwNLRPG1AaLETS+f9b+MvsPiUyuVnkGgokzdn9VPLE9CV5/8H8yvSAH4pL4l+UiveNyxbt15Q9FHQSV/HqJwfLUwO7DWzDS/R+z3r8c5lkTY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=cmss.chinamobile.com; spf=pass smtp.mailfrom=cmss.chinamobile.com; arc=none smtp.client-ip=111.22.67.139 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=cmss.chinamobile.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=cmss.chinamobile.com X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from spf.mail.chinamobile.com (unknown[10.188.0.87]) by rmmx-syy-dmz-app01-12001 (RichMail) with SMTP id 2ee1672db21d641-bff53; Fri, 08 Nov 2024 14:39:27 +0800 (CST) X-RM-TRANSID: 2ee1672db21d641-bff53 X-RM-TagInfo: emlType=0 X-RM-SPAM-FLAG: 00000000 Received: from localhost.localdomain (unknown[223.108.79.101]) by rmsmtp-syy-appsvr05-12005 (RichMail) with SMTP id 2ee5672db21ec48-8c35a; Fri, 08 Nov 2024 14:39:26 +0800 (CST) X-RM-TRANSID: 2ee5672db21ec48-8c35a From: zhangjiao2 To: rafael@kernel.org Cc: daniel.lezcano@linaro.org, rui.zhang@intel.com, lukasz.luba@arm.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, zhang jiao Subject: [PATCH] tools/thermal: Fix common realloc mistake Date: Fri, 8 Nov 2024 12:47:00 +0800 Message-Id: <20241108044700.37633-1-zhangjiao2@cmss.chinamobile.com> X-Mailer: git-send-email 2.33.0 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: zhang jiao Do not set thermometer->tz NULL when realloc failed. Signed-off-by: zhang jiao --- tools/thermal/thermometer/thermometer.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/thermal/thermometer/thermometer.c b/tools/thermal/thermometer/thermometer.c index 1a87a0a77f9f..e08291a97fd8 100644 --- a/tools/thermal/thermometer/thermometer.c +++ b/tools/thermal/thermometer/thermometer.c @@ -259,6 +259,7 @@ static int thermometer_add_tz(const char *path, const char *name, int polling, { int fd; char tz_path[PATH_MAX]; + void *tmp; sprintf(tz_path, CLASS_THERMAL"/%s/temp", path); @@ -268,12 +269,13 @@ static int thermometer_add_tz(const char *path, const char *name, int polling, return -1; } - thermometer->tz = realloc(thermometer->tz, + tmp = realloc(thermometer->tz, sizeof(*thermometer->tz) * (thermometer->nr_tz + 1)); - if (!thermometer->tz) { + if (!tmp) { ERROR("Failed to allocate thermometer->tz\n"); return -1; } + thermometer->tz = tmp; thermometer->tz[thermometer->nr_tz].fd_temp = fd; thermometer->tz[thermometer->nr_tz].name = strdup(name);