From nobody Sun Feb 8 23:42:00 2026 Received: from cstnet.cn (smtp84.cstnet.cn [159.226.251.84]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7187FC8CE; Wed, 28 Jan 2026 04:34:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.84 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769574877; cv=none; b=UYhsdfnvBzet0r98RVQcSJhndZZzTKiysmd2NeihJrdvKxB/XeFZEs8Q4qHHfE3t+UGHKEZggU9eVr7EUVZSum8EqUADPOY7t053QaR7C5HeJFX2uteqapXK3Bgioe5evf2VqgtDcDwpwPEAj/HLfLn66wkIMSPT3WGi+K+UtIc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769574877; c=relaxed/simple; bh=EsdkgL7G1UGQ6GvONIln1YXWU9go0QNwrzHXpU1XMs0=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=t9I2czdC/lwBU+Pxmz/SJYZPapG6+Kcleou4WV7hqPfWdKdk2ov+Gs4PA/VmTlNE1zDWGT1JGX1DOH7LqGDT3XkA0xj64kBrN0kNlwpVLb/PdKgHgwdgocaiRLKEd4NVD0ANaB0cV//S1FxOzRI26EOzs/pLWhZL3w9u1rpOm0I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.84 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from localhost (unknown [124.16.138.129]) by APP-05 (Coremail) with SMTP id zQCowAA3yQzYkXlp7+3YBg--.22836S2; Wed, 28 Jan 2026 12:34:32 +0800 (CST) From: Chen Ni To: alexandre.belloni@bootlin.com Cc: linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org, Chen Ni Subject: [PATCH] rtc: isl12022: Add missing check for device_property_read_u32_array Date: Wed, 28 Jan 2026 12:34:30 +0800 Message-Id: <20260128043430.2260970-1-nichen@iscas.ac.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: zQCowAA3yQzYkXlp7+3YBg--.22836S2 X-Coremail-Antispam: 1UD129KBjvdXoW7JF4DAw15AF43XFW5GFWkXrb_yoWDJFX_CF yxuas7Jw4DAF48tF13Xa4Sgryvv3Wv93yvqrnrtFZ3ZFW2y3srWFWxXr4Dur1FyrW2qF15 Arn5JryxAFnYkjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbskFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_ Gr1UM28EF7xvwVC2z280aVAFwI0_Cr1j6rxdM28EF7xvwVC2z280aVCY1x0267AKxVW0oV Cq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0 I7IYx2IY67AKxVWUXVWUAwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r 4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCY1x0262kKe7AKxVWU AVWUtwCY02Avz4vE14v_Gryl42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr 1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE 14v26r126r1DMIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7 IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E 87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73Uj IFyTuYvjfU80PfDUUUU X-CM-SenderInfo: xqlfxv3q6l2u1dvotugofq/ Content-Type: text/plain; charset="utf-8" Add check for the return value of device_property_read_u32_array() and log a warning message if it fails in order to catch the error. Signed-off-by: Chen Ni --- drivers/rtc/rtc-isl12022.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c index 5fc52dc64213..6f66ec4a9948 100644 --- a/drivers/rtc/rtc-isl12022.c +++ b/drivers/rtc/rtc-isl12022.c @@ -517,8 +517,10 @@ static void isl12022_set_trip_levels(struct device *de= v) int ret, i, j, x[2]; u8 val, mask; =20 - device_property_read_u32_array(dev, "isil,battery-trip-levels-microvolt", - levels, 2); + ret =3D device_property_read_u32_array(dev, "isil,battery-trip-levels-mic= rovolt", + levels, 2); + if (ret) + dev_warn(dev, "failed to read battery-trip-levels-microvolt: %d\n", ret); =20 for (i =3D 0; i < 2; i++) { for (j =3D 0; j < ARRAY_SIZE(trip_levels[i]) - 1; j++) { --=20 2.25.1