From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f45.google.com (mail-ot1-f45.google.com [209.85.210.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A0B33175A67 for ; Sat, 18 Apr 2026 00:52:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776473546; cv=none; b=Uz2LCFVmKRUok+WeNYsKLheXZXNYPy47wE1qUYC5Ndp0EgCAO5gD8olP6q6uU+ZbUufOKytmrANrtBuEHtdn9WKQOb51QjJDkAJb6hhbosxu1borlu78CB6Dl3JXccz+vhROrFY//Un61yZaylpgY0jC8PC2Mh1c2m7t7PIQuXw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776473546; c=relaxed/simple; bh=IgvV76mhiepFn41sPiCCpHE+hyFnJxWxzclBRIbikpc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=YXnSCnRPvIYJctAYqMatbR+uE8nY8MjRbDQncMtge1xw7gGf8K9FN+JyOkfEKw7NTISk2HQHCqs5+1mvIEImh0XGXnRtW2PCcC014HVDqyJu8qX62KJoWcNqUjXclTUANJFQPdhb/aBWFISpNp5e0DjR8VqX+MAV3Vq/ozmBkFU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=IWKRWMne; arc=none smtp.client-ip=209.85.210.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IWKRWMne" Received: by mail-ot1-f45.google.com with SMTP id 46e09a7af769-7dbccb6ae20so716622a34.3 for ; Fri, 17 Apr 2026 17:52:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1776473544; x=1777078344; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=xrWZOkSGwAlRRgBDBv1Jzc41071sReDN2QLXfPsn6jY=; b=IWKRWMneBPWk1swNZTZyt5NDenMFx0pIUvnHyiLjfJZUNjG4gAdaQw4xsAssQ0+yoW kVthZNGtda6nootuJhb1M91Qjz1mAmNHs5i5xCG8cm6wEbmbfp2jg4v+RzBqFGQZp060 HBqbGvSRnv/TRLMJeZk1WfKnxi55GgV51Rx76FnGRK2+Ncr92UGK2CeQbBTumQ8f1Jfx 5dW9hXfjIkTGqiSe1BVBYgwYB8l0D7NE2cNLhMvyXhsi/rjX6Zg0OVAOtByN9/FeD4pu h2tFh0SNj7QnXgHJt8mMgVFnTDzo3gM+VDsP/i3DtpgjD8kz8guYYOXoqGLfSwDCGLsV EWCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776473544; x=1777078344; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=xrWZOkSGwAlRRgBDBv1Jzc41071sReDN2QLXfPsn6jY=; b=SjJRx19yrbAomkXuXYHC+SsXfdVWLOYzA2fA1ttR9NUIC4YrPfbSp2mulgApL1AcR6 as2YvcX2bu/KdeKoiiomFrpRrFdCuT47ua358wBS857GLXKmQsDNyEGATXyV4t8kgz9W AnO+B1UQraR9F7jlQ+i3ldUpA/rZl+f1bkQO0YG2f63QLu+OkuugQnRvTBUEno+efapQ k0PH6tr/CsjRUh9AUmUyDb7SzaPz2yXWSxQdrvRjuB2ZMpgUYB7aefmGUX6iB+NHKKg2 tzyD4U+d8Ql2psDHxcCzKjHsCPVbDgBl5jlVXuCya1s8N1QoC7nLSTJGDIXjJ4CER7ZT hjPQ== X-Forwarded-Encrypted: i=1; AFNElJ/btbMgwHm0IcYtCEUrjr0MYXZeOaHA1XDNbJixnbfPU4NTjlJ6/Qhl69nEq1z7sufnbV8E6JccopA=@vger.kernel.org X-Gm-Message-State: AOJu0YygOsPIj+XCHl95Sild59htbb/983+9fFZU2MNkjCs1opl/BTH/ JG9cvR1YfWDcr4kWMdW/jUSBNX6xcqpjiiv+P1U380om345fbJY8KWF7 X-Gm-Gg: AeBDieucrdPsdyXWsQgnkcWBnWMZR8+zV5AzjZc+LjH34M+KpWoHKEq2Mi/WG5MzVRe d2/h92kyV6WE+y900xGPDR3zb4fAkxq99DKGM/9VwqqVqlqsGb+9Kbl/vKhU4oLNw/+UuX1Bvuc EKPNnkDpUadVaZuH8zARZx8x4XnXGc34INkJLdW8ptexAE7oZsaeVeCzj3+146wKs8IwK+/phlb YmoL3PtN7zoZeKXArD/FuIdGp0kEmx6Txkf/ShgBF7T8oqZK3yuyKVWlBxIKVG3Fram6vAze+OM /HXTgppFferIqtgn9Y65P1yrLmS9W36iNnELpl+cNwH2hQFxYPUBsx/sVycCwx/jA9zVLp/vCJj xGsZz0nhYHYLmBVdv6haFNLqeX0zX9gHTomF/FZ0FjZEhhxHrqYzT5U/uOFoyl5EtM7JrLd9AeI BdkoVL0Di+VxhZZOv+RCpV6H2QeZLbnZQoXdIHithF+/qCCB4lGE9vLwMILFW6Gl0qeLmG X-Received: by 2002:a05:6830:67f9:b0:7d7:d0d5:5bf6 with SMTP id 46e09a7af769-7dc9521e6d5mr3103694a34.21.1776473544492; Fri, 17 Apr 2026 17:52:24 -0700 (PDT) Received: from linuxescape.lan (23-88-128-2.fttp.usinternet.com. [23.88.128.2]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7dca6f589d0sm159665a34.27.2026.04.17.17.52.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Apr 2026 17:52:24 -0700 (PDT) From: Maxwell Doose To: ak@it-klinger.de, jic23@kernel.org Cc: dlechner@baylibre.com, nuno.sa@analog.com, andy@kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] iio: proximity: srf08: replace sprintf with sysfs_emit Date: Fri, 17 Apr 2026 19:52:04 -0500 Message-ID: <20260418005203.85696-2-m32285159@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This patch replaces sprintf function calls with sysfs_emit and sysfs_emit_at. This removes unsafe functions and makes the driver more stable and modern, by ensuring that boundary checks take place. Signed-off-by: Maxwell Doose --- drivers/iio/proximity/srf08.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/iio/proximity/srf08.c b/drivers/iio/proximity/srf08.c index d7e4cc48cfbf..6d38a894ecd3 100644 --- a/drivers/iio/proximity/srf08.c +++ b/drivers/iio/proximity/srf08.c @@ -226,7 +226,7 @@ static int srf08_read_raw(struct iio_dev *indio_dev, static ssize_t srf08_show_range_mm_available(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "[0.043 0.043 11.008]\n"); + return sysfs_emit(buf, "[0.043 0.043 11.008]\n"); } static IIO_DEVICE_ATTR(sensor_max_range_available, S_IRUGO, @@ -238,7 +238,7 @@ static ssize_t srf08_show_range_mm(struct device *dev, struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct srf08_data *data = iio_priv(indio_dev); - return sprintf(buf, "%d.%03d\n", data->range_mm / 1000, + return sysfs_emit(buf, "%d.%03d\n", data->range_mm / 1000, data->range_mm % 1000); } @@ -316,10 +316,10 @@ static ssize_t srf08_show_sensitivity_available(struct device *dev, for (i = 0; i < data->chip_info->num_sensitivity_avail; i++) if (data->chip_info->sensitivity_avail[i]) - len += sprintf(buf + len, "%d ", + len += sysfs_emit_at(buf, len, "%d ", data->chip_info->sensitivity_avail[i]); - len += sprintf(buf + len, "\n"); + len += sysfs_emit_at(buf, len, "\n"); return len; } @@ -334,7 +334,7 @@ static ssize_t srf08_show_sensitivity(struct device *dev, struct srf08_data *data = iio_priv(indio_dev); int len; - len = sprintf(buf, "%d\n", data->sensitivity); + len = sysfs_emit(buf, "%d\n", data->sensitivity); return len; } -- 2.53.0