From nobody Sun Feb 8 19:44:05 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 B73E724728F; Wed, 28 Jan 2026 04:31:53 +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=1769574716; cv=none; b=E97D6D3gLysgPrDItnt7mRWxMApNXcdnDkPcliiVS7Jl6Yuekjgsmx5ZNigiCj6vvHn1kcjkqVtqs6R72jFnqiC3OZTk4gw3BqKNM0vQqblXuG/3YxUBF439aS810QsiCMlDIdb80jatIEr9Xqci1sp6Qdy++Sv5i7o42DVbbmw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769574716; c=relaxed/simple; bh=Vur2rStXAf82QT2flZpvHUvVNlOil2zDUtGR6BkqyUI=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=SR1lxbojMw1vJ1+lzbQnZu6AQGm8wBlon9KbdjU3Fhl1QW4h8QVnbuGfIq7g8DyvN/U7EWmDFtBGUKAFu3JeVMvKlipKOFCBWUVeMF8KjLy+xzHnlsjHMP+VJvTQi9WTRuT31YUYpSbHeMuQeGCVAr8l8NtAtMoVovhhI12yfzY= 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 zQCowABn9gkzkXlpqN_YBg--.28766S2; Wed, 28 Jan 2026 12:31:47 +0800 (CST) From: Chen Ni To: lars@metafoo.de, Michael.Hennerich@analog.com, cosmin.tanislav@analog.com, jic23@kernel.org, dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Chen Ni Subject: [PATCH] iio: addac: ad74115: Add missing check for device_property_read_u32_array Date: Wed, 28 Jan 2026 12:30:40 +0800 Message-Id: <20260128043040.2260887-1-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: zQCowABn9gkzkXlpqN_YBg--.28766S2 X-Coremail-Antispam: 1UD129KBjvdXoW7Xr1UJw45GF1xWw4rWF1kGrg_yoWftFb_Cw n7uwn7ZFW8Aa1qkr1UtrnFvFyjvFyUXF4kZ3Z0vaySqry5J393Zr18Zr4DKFyxCryIy3W2 vr4UurWfCF1UCjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbTAFF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_ Gr1UM28EF7xvwVC2z280aVAFwI0_Cr1j6rxdM28EF7xvwVC2z280aVCY1x0267AKxVW0oV Cq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0 I7IYx2IY67AKxVWUXVWUAwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r 4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628v n2kIc2xKxwCY1x0262kKe7AKxVWUtVW8ZwCY02Avz4vE14v_Gryl42xK82IYc2Ij64vIr4 1l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK 67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI 8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAv wI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14 v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjfUelksDUUUU X-CM-SenderInfo: xqlfxv3q6l2u1dvotugofq/ Content-Type: text/plain; charset="utf-8" Add check for the return value of device_property_read_u32_array() and return the error if it fails in order to catch the error. Signed-off-by: Chen Ni --- drivers/iio/addac/ad74115.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/iio/addac/ad74115.c b/drivers/iio/addac/ad74115.c index f8b04d86b01f..d0d6c0575ff1 100644 --- a/drivers/iio/addac/ad74115.c +++ b/drivers/iio/addac/ad74115.c @@ -1515,8 +1515,12 @@ static int ad74115_setup_adc_conv2_range(struct ad74= 115_state *st) }; struct device *dev =3D &st->spi->dev; unsigned int i; + int ret; =20 - device_property_read_u32_array(dev, prop_name, vals, 2); + ret =3D device_property_read_u32_array(dev, prop_name, vals, 2); + if (ret) + return dev_err_probe(dev, ret, "Failed to read %s prop\n", + prop_name); =20 for (i =3D 0; i < tbl_len; i++) if (vals[0] =3D=3D ad74115_adc_range_tbl[i][0] && --=20 2.25.1