From patchwork Wed Jun 5 17:59:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joy Chakraborty X-Patchwork-Id: 801928 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (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 62EE7195B31 for ; Wed, 5 Jun 2024 18:00:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717610433; cv=none; b=O9jnrrlGnKQvE4C9m39M/WC7qL4Smd/PP1MswA/m/T012lRtyiG+JF3a4Q3WT226usSTQmgpUNVke8nfVtfYIrt0QysnVYfoJuG+o3X4SxsDSMIMT6hikBdPja+ZEnKolYOqGoA3HhWQ1UrbSkEEn6OHlM9Muw4N+yjNxVmMgVQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717610433; c=relaxed/simple; bh=7YntdTNu7aMZ5zLGGRpR3JsfAB0rBOtanC3KQe4XBYY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=gdJehf0c2kLwYEosKVvKC3M4s1Tv8/e0el3g5YIN8eAayg59qfvK2d4D8y9JvWNltMj3x6mnffS1CieHM5sS8qiQstj+pVAU6PbY5cm5xZ9LU7rVDkW3pM7tfX9zDapMPYtIMV1adAmmSRx/D1g4jit9nD3AVLF0UgZGziVsO08= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--joychakr.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=xh8vf0dA; arc=none smtp.client-ip=209.85.128.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--joychakr.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="xh8vf0dA" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-62a1e9807c0so743487b3.0 for ; Wed, 05 Jun 2024 11:00:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1717610430; x=1718215230; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=GabZAVwK9FSl0VODpa0rRnhc7Hb5WIAFsUpyNY/Jkgw=; b=xh8vf0dA+TFlUnkkazIa6Em6KzJbbntuGamI4Gn8Wj1jFYYx5ZYFkn2tA0alpWg68u 9jhNXfx2DxL9m7tqmgthqmC1rUSflk24zLEIHrstf3mW39EvFDR2FeelUhLsupY30DEi /gVZrfJA0Slzv9rEogcUVgXiY8hLFc0E46E+FUZ/X8hWU6PYTTTOsgDQPMK44rgcyi4X g7UTGxktSZ/IcwoGFDfvWXQYzCbWyLYks/FVJWCMOKozF5JwJ5koJWgZ7381pzPo2fKz JwnKZftDOTv9WkuxVVV5rBvZHglYy9BQThw/il2JbfCMaxHpHsqQPdwDUsOxRCnGKcAo B5jQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717610430; x=1718215230; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=GabZAVwK9FSl0VODpa0rRnhc7Hb5WIAFsUpyNY/Jkgw=; b=p8txXxp7Txz/AjwpYrlrJWpIjKDVyydDNfqjXqUzKFc5UsmLgJs5kmlsGuvkToMLkR AybFbRW3hTc3jF5qN/NXpab2trNnXzaHfJwn8IcMP4JOww5q1KWEFRcsTWY2QPMbPSi7 XTnTYZ1nNcOuQ8qOUxL4D6KO3PF5Z/SPrt1780QfuAuyqKmyISBIe9rejCREDWwh9+FH 7dMCeYvTLgVUDhr6hbT5hhWg1xiMpffjpHlkl8TFm1jTKqSjML20WMn2siChA5JQ1TOT Y7DZ9UWLyyF1QOg9hJzI5kf9Bi8wpMXlyKPxuCdlSUQFtbUyTCSi5XxO0NvO0IaKa7py z9QQ== X-Forwarded-Encrypted: i=1; AJvYcCW2hR66iauLffyR5+AeNNVApGgXWoUP0qgBXfNg+OyIxwcOHnII+lnzi0Q6u0gtmMjdHm+gEh+xyjIwTdbZCQFi5HwYNgoq/LdY X-Gm-Message-State: AOJu0YyI1AOt9uon48rN4lBedbnxlFyHUpLjoOZT7ajSBcM0/3EX//JU CkN/76fHbmnsiY/3egBEkomqMspsaBE8jTFniRJXYzXxcNYdqCP0TBJ8b/gGoGqDj3oyPx6H23D oneDrR1IFFg== X-Google-Smtp-Source: AGHT+IEja+GLVOpS7V2U0r8IR9Z9ZB6nAf9rPU6225JSB7wTRYk1qUU4QFIkeBtYF/8VHx1IHDowrDp0WPzcZg== X-Received: from joychakr.c.googlers.com ([fda3:e722:ac3:cc00:4f:4b78:c0a8:6ea]) (user=joychakr job=sendgmr) by 2002:a0d:d952:0:b0:627:de82:8077 with SMTP id 00721157ae682-62cc709af05mr798057b3.2.1717610430440; Wed, 05 Jun 2024 11:00:30 -0700 (PDT) Date: Wed, 5 Jun 2024 17:59:51 +0000 In-Reply-To: <20240605175953.2613260-1-joychakr@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240605175953.2613260-1-joychakr@google.com> X-Mailer: git-send-email 2.45.1.467.gbab1589fc0-goog Message-ID: <20240605175953.2613260-8-joychakr@google.com> Subject: [PATCH v1 07/17] misc: eeprom: at25: Change nvmem reg_read/write return type From: Joy Chakraborty To: Srinivas Kandagatla , Greg Kroah-Hartman , AngeloGioacchino Del Regno , Lars-Peter Clausen , Sakari Ailus , Bingbu Cao , Zhihao Cheng , Jerome Brunet , Martin Blumenstingl Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-media@vger.kernel.org, linux-i2c@vger.kernel.org, linux-gpio@vger.kernel.org, linux-mtd@lists.infradead.org, linux-rtc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, manugautam@google.com, Joy Chakraborty Change nvmem read/write function definition return type to ssize_t. Signed-off-by: Joy Chakraborty --- drivers/misc/eeprom/at25.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c index 595ceb9a7126..73d60f80aea8 100644 --- a/drivers/misc/eeprom/at25.c +++ b/drivers/misc/eeprom/at25.c @@ -74,8 +74,8 @@ struct at25_data { #define io_limit PAGE_SIZE /* bytes */ -static int at25_ee_read(void *priv, unsigned int offset, - void *val, size_t count) +static ssize_t at25_ee_read(void *priv, unsigned int offset, + void *val, size_t count) { struct at25_data *at25 = priv; char *buf = val; @@ -147,7 +147,7 @@ static int at25_ee_read(void *priv, unsigned int offset, dev_dbg(&at25->spi->dev, "read %zu bytes at %d\n", count, offset); - return 0; + return count; } /* Read extra registers as ID or serial number */ @@ -195,10 +195,11 @@ static struct attribute *sernum_attrs[] = { }; ATTRIBUTE_GROUPS(sernum); -static int at25_ee_write(void *priv, unsigned int off, void *val, size_t count) +static ssize_t at25_ee_write(void *priv, unsigned int off, void *val, size_t count) { struct at25_data *at25 = priv; size_t maxsz = spi_max_transfer_size(at25->spi); + size_t bytes_written = count; const char *buf = val; int status = 0; unsigned buf_size; @@ -313,7 +314,7 @@ static int at25_ee_write(void *priv, unsigned int off, void *val, size_t count) mutex_unlock(&at25->lock); kfree(bounce); - return status; + return status < 0 ? status : bytes_written; } /*-------------------------------------------------------------------------*/