From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dy1-f182.google.com (mail-dy1-f182.google.com [74.125.82.182]) (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 52C8F3CEBB6 for ; Tue, 16 Jun 2026 05:09:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781586563; cv=none; b=qQWxYa1YWUADbuExoukvWaVjqcuutrfjo8vDEZXZFX6n+/2bTTURYrQadrByPBURW+u+l0+aZ2PKLcf4ohtITSF0zPOVZl3DPELns2htyRotZJofU5JKL1BX+DYQZtv2uNV8MZTOA7OxJa8RmJEv+eVwinTAS1u6EFuHdC9BMsg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781586563; c=relaxed/simple; bh=ru6x3RlJfbCUE8DVyQmiWDo3PoM/e9yRCjb96yp2+mM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sa8Mle1y6CFew4wMgc37pxjhtL60u0v1q7QDf5AbadgK22JCzjRxc5Qy2hnv4Saz4EogGw+DXuT83rdpuAHrM7TxEAonRbitNio1wfmkq6KYhQQAAG7tbOfLdEgOqaNbkgFhWwtpoFQ9XDoFLfaq976hQplRwVC2RM0SN2RlqDc= 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=N7RdUsL5; arc=none smtp.client-ip=74.125.82.182 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="N7RdUsL5" Received: by mail-dy1-f182.google.com with SMTP id 5a478bee46e88-304fb780deaso4272663eec.1 for ; Mon, 15 Jun 2026 22:09:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1781586561; x=1782191361; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=FeVlvWkv22rR4PXPj+5zPYJxlOA+VvyqrnuksJQx60Q=; b=N7RdUsL5a+6zG+KkzIkofLTLXmlNunh4eygZUxcxQ7stVKgTik1vDtcQovtS+3mWio lzXznluU0gcfStW6zJBuz3UmAPVYyaLQ2Y2pmgb5msrepwo7FHw22uQOdt5RvXoBaTHl 9BjRTa5mjxlXYN+yTpTLGOrIE1fHIDjKa8bHl/3RD/kmKJgwnINJVHEf8z7SM9Tj3GtG xWsVh6K7A+F1oriYNUGZ+lAaitKeBI/DJYxsuvRc6TAm2v+b7W/+K8XFd+aZYRBUdZpn pT/uYU4qbyHSMw3NLyoLZcDDCf/cXJEea61meg3J5VFWmqjc/V8jIX1eEGn2dpOEdWCq 4ucA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781586561; x=1782191361; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=FeVlvWkv22rR4PXPj+5zPYJxlOA+VvyqrnuksJQx60Q=; b=nCqUsLRnFSuSU5yhITvz2Uxh4Z0D2COty6/3zue+pis105Kv8tvrFoBknpiO8xmpA9 wFmHND+vBcSp1VbCw7HdVIjzl4EXoG5cNAZ8n48mcldE+N2v8KoHxX/Gk8hIbjJLSZRO hPNx94wUtbY0JDwiJO/OyuxG92+VEHwth88n4Ucu+spP+p5CRWXwQkUymaZAG7dn3hdE Q5IBI8lD3Bfn+vXvcT+eLa/gvurSegeNzQrwT+PH3rERrr3c/tkVaBExxMRNzQjLyzZG 7SYBJuRa6ISZBLJNVNIn/d6jQ7vGN/LxgjKQFsgA8xmd8U6hlN94K8OluBeh3Jrjsuwl ht7Q== X-Forwarded-Encrypted: i=1; AFNElJ9u2W++eofRSAy/cBj7yQrhT0DKD1XP1PIA7g2PO0e/wh4lIfJvt8Rdq7e88IDUEJwyGJ6KNQmJ6VKvUMU=@vger.kernel.org X-Gm-Message-State: AOJu0YwTwV3+8c5djNxNH20+/YxBulPqxZks7bNHTNsJYjEUqFBc9TUc CbiRpdGQ+eATqqZ8WyoMZ8bTlGVimqMV0BsOLl4myiwFcu7WH7opJvdZ X-Gm-Gg: Acq92OHKOC5FxM74O3vaTaTXKOyt403jusZsyECOeD41iexMIKxKSGe1hR1A2mcLrQs 1Na+Le+NKwNelKWtq5/8W+JZ94M0dXLTqRsbnGbwkN6AXH9lkyoOS+KZfW3TIsV34wbP6ZCgcuh VlTAse/rxbBTUQrFkn1AZ65gyWyjjX3UoveUPFHr2z/2UV1LAN/I0BbVJHNZuvL46LCpvf9GvsD apOI7wHb5iPySaEM2jJETNXhk9HhxR6Y3ELQoGIxW39jY5c1UjEL9NLWO06M4Tzd5ANwtlCLUlg km3fgcst2Y8McaRaEyNqYGPELRG7251Gq8BBQTOmxEN1pm1YHgtJpsSh+agnePpv6PB2HbsycxK iQAz2sxvwp1vWVEKLGk/09XkI3g5uhfcOaVUbZW7gwdva2cN+5YYUAqWodscf4LJCjkKxXsaeBS BGihtixtbA7tBh0F7o8KpVjjO2yqXWTKbQhRcX+0cXiC65SwFcLxepwbE3tP7MLASJS9DKpDWAg JqNNmU8ZUrE95o= X-Received: by 2002:a05:7300:f10a:b0:307:91f5:92e2 with SMTP id 5a478bee46e88-3081ff4b659mr9497608eec.4.1781586561366; Mon, 15 Jun 2026 22:09:21 -0700 (PDT) Received: from dtor-ws.sjc.corp.google.com ([2a00:79e0:2ebe:8:3714:f5c2:9b83:3df1]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3081ea4fe55sm17266615eec.25.2026.06.15.22.09.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jun 2026 22:09:20 -0700 (PDT) From: Dmitry Torokhov To: linux-input@vger.kernel.org Cc: Linus Walleij , Bryam Vargas , linux-kernel@vger.kernel.org Subject: [PATCH 5/6] Input: mms114 - replace BUG() and fix alignment Date: Mon, 15 Jun 2026 22:09:10 -0700 Message-ID: <20260616050912.1531241-5-dmitry.torokhov@gmail.com> X-Mailer: git-send-email 2.54.0.1136.gdb2ca164c4-goog In-Reply-To: <20260616050912.1531241-1-dmitry.torokhov@gmail.com> References: <20260616050912.1531241-1-dmitry.torokhov@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Avoid crashing the kernel with BUG() when userspace attempts to read the write-only mode control register. Instead, trigger a warning with WARN_ON() and return -EINVAL to allow the kernel to recover. Additionally, fix parameter alignment to match the open parenthesis in several functions to conform to the kernel coding style. Assisted-by: Antigravity:gemini-3.5-flash Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/mms114.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/input/touchscreen/mms114.c b/drivers/input/touchscreen/mms114.c index c59aec8f2feb..bf01eee0560a 100644 --- a/drivers/input/touchscreen/mms114.c +++ b/drivers/input/touchscreen/mms114.c @@ -95,8 +95,8 @@ static int __mms114_read_reg(struct mms114_data *data, u8 reg, u8 buf = reg; int error; - if (reg <= MMS114_MODE_CONTROL && reg + len > MMS114_MODE_CONTROL) - BUG(); + if (WARN_ON(reg <= MMS114_MODE_CONTROL && reg + len > MMS114_MODE_CONTROL)) + return -EINVAL; /* Write register */ xfer[0].addr = client->addr; @@ -310,8 +310,7 @@ static int mms114_get_version(struct mms114_data *data) if (error) return error; - group = i2c_smbus_read_byte_data(data->client, - MMS152_COMPAT_GROUP); + group = i2c_smbus_read_byte_data(data->client, MMS152_COMPAT_GROUP); if (group < 0) return group; @@ -371,14 +370,14 @@ static int mms114_setup_regs(struct mms114_data *data) if (data->contact_threshold) { error = mms114_write_reg(data, MMS114_CONTACT_THRESHOLD, - data->contact_threshold); + data->contact_threshold); if (error < 0) return error; } if (data->moving_threshold) { error = mms114_write_reg(data, MMS114_MOVING_THRESHOLD, - data->moving_threshold); + data->moving_threshold); if (error < 0) return error; } @@ -464,9 +463,9 @@ static int mms114_parse_legacy_bindings(struct mms114_data *data) } device_property_read_u32(dev, "contact-threshold", - &data->contact_threshold); + &data->contact_threshold); device_property_read_u32(dev, "moving-threshold", - &data->moving_threshold); + &data->moving_threshold); if (device_property_read_bool(dev, "x-invert")) props->invert_x = true; @@ -519,7 +518,7 @@ static int mms114_probe(struct i2c_client *client) return data->num_keycodes; } else if (data->num_keycodes > MMS114_MAX_TOUCHKEYS) { dev_warn(&client->dev, - "Found %d linux,keycodes but max is %d, ignoring the rest\n", + "Found %d linux,keycodes but max is %d, ignoring the rest\n", data->num_keycodes, MMS114_MAX_TOUCHKEYS); data->num_keycodes = MMS114_MAX_TOUCHKEYS; } -- 2.54.0.1136.gdb2ca164c4-goog