From nobody Thu Dec 18 02:26:20 2025 Received: from sender4-pp-f112.zoho.com (sender4-pp-f112.zoho.com [136.143.188.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB43623BD17; Mon, 15 Dec 2025 12:30:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765801844; cv=pass; b=lQL6k0GvJO6pMcJ6KDujovvit8y9FHipQClF/YZnLxNdFPSqchI9EDQHjoYRjxLvFKbR5T1g3nZpPkjEpGrBWnAXxJutfIxQlElpGgNSBqKJUa9yUmtGCU9c+uzsUru2EjALDltA6l36Yv3v4TME6EBbblcJSwTNMgGC/u/5vSU= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765801844; c=relaxed/simple; bh=z668XgwPST8e2Yu8ccoR34JkPQXmjHez0OHtJeY41pM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=aJHy4iKwcFW0wrTmfbAd7vcaGOgHuL14NWuR6uosTXAQAfWUBKru/xsLRAFjIxZ6hxB3f089LkPcegVe3tkrmeDyAe/1oMrC/rCBjBb7cmuFQ1DibZxGcdGue6jkjG6P8M01X1Xxkiv5ueOSsHibjoLlcpYJhpRt3gFMxpXsmpc= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b=kuLtwajX; arc=pass smtp.client-ip=136.143.188.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="kuLtwajX" ARC-Seal: i=1; a=rsa-sha256; t=1765801805; cv=none; d=zohomail.com; s=zohoarc; b=MIqPvcu8f4lxYvcZwsgV8rAX3pVUZHTMnXNL64KenDPT/wCnpJiSxx2H+rHfOl57smOYIfv+m1tCkivMb2spJtwsO5dHcO/UmqaNWJDEZd+fA0L9S0POWxegCpCxbYzu3uIZ3Lslfl/6KE+BadWJuSrLBKAqy5dJH3zLpVg1kTk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1765801805; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=TuKNRaz7MrQ0hh61vH11eGIxG3RyMa5h1730t+udGTs=; b=IsNDvLFrk6aLJMgauGdh1pBfg3y+hs3v7kD1+q8Vp9f5WqTAg24Qix8dHZGa/fePgtumdrL4JnIXwzVbCW4HktaQnyFcfyP/B5RjSfHYZazyZSRzAXN95lH4jf5a/SMWeIECAT2s94ShAX19SA6ex37rNhNhUSosCyjtFW12A/M= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1765801805; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=TuKNRaz7MrQ0hh61vH11eGIxG3RyMa5h1730t+udGTs=; b=kuLtwajXx7289h4z8M055JO6EtPECSzvaKBVOLAAVs8A8ETvwt9+WvCK3GanUZx7 7ScxqacgN/q+BCLrQCrI8LPdXoeQ6QLRhWlbGg3jXmwQzwCrhouDvJ5euxb4ht5YdwH yLM4PgJjVd6wCEMTZsajPV1OVOzqKHu/BI6XkVG8= Received: by mx.zohomail.com with SMTPS id 176580180327052.47775160298363; Mon, 15 Dec 2025 04:30:03 -0800 (PST) From: Nicolas Frattaroli Date: Mon, 15 Dec 2025 13:29:31 +0100 Subject: [PATCH v2 3/4] Input: adc-keys - Use dev_err_probe in probe function Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251215-rock4d-audio-v2-3-82a61de39b4c@collabora.com> References: <20251215-rock4d-audio-v2-0-82a61de39b4c@collabora.com> In-Reply-To: <20251215-rock4d-audio-v2-0-82a61de39b4c@collabora.com> To: Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alexandre Belloni , Heiko Stuebner Cc: kernel@collabora.com, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, Nicolas Frattaroli X-Mailer: b4 0.14.3 Rework the probe function, and functions called by the probe function, to use dev_err_probe for error logging. While at it, also do some minor style cleanups, like not error logging on -ENOMEM and using ! instead of =3D=3D 0. Signed-off-by: Nicolas Frattaroli Reviewed-by: Alexandre Belloni --- drivers/input/keyboard/adc-keys.c | 53 ++++++++++++++++-------------------= ---- 1 file changed, 21 insertions(+), 32 deletions(-) diff --git a/drivers/input/keyboard/adc-keys.c b/drivers/input/keyboard/adc= -keys.c index 62376f34f7d0..6f2ddcecea99 100644 --- a/drivers/input/keyboard/adc-keys.c +++ b/drivers/input/keyboard/adc-keys.c @@ -74,10 +74,8 @@ static int adc_keys_load_keymap(struct device *dev, stru= ct adc_keys_state *st) int i; =20 st->num_keys =3D device_get_child_node_count(dev); - if (st->num_keys =3D=3D 0) { - dev_err(dev, "keymap is missing\n"); - return -EINVAL; - } + if (!st->num_keys) + return dev_err_probe(dev, -EINVAL, "keymap is missing\n"); =20 map =3D devm_kmalloc_array(dev, st->num_keys, sizeof(*map), GFP_KERNEL); if (!map) @@ -86,17 +84,16 @@ static int adc_keys_load_keymap(struct device *dev, str= uct adc_keys_state *st) i =3D 0; device_for_each_child_node_scoped(dev, child) { if (fwnode_property_read_u32(child, "press-threshold-microvolt", - &map[i].voltage)) { - dev_err(dev, "Key with invalid or missing voltage\n"); - return -EINVAL; - } + &map[i].voltage)) + return dev_err_probe(dev, -EINVAL, + "Key with invalid or missing voltage\n"); + map[i].voltage /=3D 1000; =20 if (fwnode_property_read_u32(child, "linux,code", - &map[i].code)) { - dev_err(dev, "Key with invalid or missing linux,code\n"); - return -EINVAL; - } + &map[i].code)) + return dev_err_probe(dev, -EINVAL, + "Key with invalid or missing linux,code\n"); =20 if (fwnode_property_read_u32(child, "linux,input-type", &map[i].type)) @@ -129,7 +126,8 @@ static int adc_keys_probe(struct platform_device *pdev) =20 st->channel =3D devm_iio_channel_get(dev, "buttons"); if (IS_ERR(st->channel)) - return PTR_ERR(st->channel); + return dev_err_probe(dev, PTR_ERR(st->channel), + "Could not get iio channel\n"); =20 if (!st->channel->indio_dev) return -ENXIO; @@ -138,16 +136,13 @@ static int adc_keys_probe(struct platform_device *pde= v) if (error < 0) return error; =20 - if (type !=3D IIO_VOLTAGE) { - dev_err(dev, "Incompatible channel type %d\n", type); - return -EINVAL; - } + if (type !=3D IIO_VOLTAGE) + return dev_err_probe(dev, -EINVAL, "Incompatible channel type %d\n", typ= e); =20 if (device_property_read_u32(dev, "keyup-threshold-microvolt", - &st->keyup_voltage)) { - dev_err(dev, "Invalid or missing keyup voltage\n"); - return -EINVAL; - } + &st->keyup_voltage)) + return dev_err_probe(dev, -EINVAL, "Invalid or missing keyup voltage\n"); + st->keyup_voltage /=3D 1000; =20 error =3D adc_keys_load_keymap(dev, st); @@ -155,10 +150,8 @@ static int adc_keys_probe(struct platform_device *pdev) return error; =20 input =3D devm_input_allocate_device(dev); - if (!input) { - dev_err(dev, "failed to allocate input device\n"); + if (!input) return -ENOMEM; - } =20 input_set_drvdata(input, st); =20 @@ -178,19 +171,15 @@ static int adc_keys_probe(struct platform_device *pde= v) =20 =20 error =3D input_setup_polling(input, adc_keys_poll); - if (error) { - dev_err(dev, "Unable to set up polling: %d\n", error); - return error; - } + if (error) + return dev_err_probe(dev, error, "Unable to set up polling\n"); =20 if (!device_property_read_u32(dev, "poll-interval", &value)) input_set_poll_interval(input, value); =20 error =3D input_register_device(input); - if (error) { - dev_err(dev, "Unable to register input device: %d\n", error); - return error; - } + if (error) + return dev_err_probe(dev, error, "Unable to register input device\n"); =20 return 0; } --=20 2.52.0