From patchwork Wed Jun 5 18:02:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joy Chakraborty X-Patchwork-Id: 13687315 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (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 8E3111509B4 for ; Wed, 5 Jun 2024 18:03:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717610584; cv=none; b=nvUalA4P3QDQ7B406zWMtnSzptjsn5r8u9dIkME+xoY/N2/vNrLilUp8Nzaf7gIb/T093fabUYq5gwTsgvFU1e9E9FOxKnffKrDiuVjhrqDO7W8/EvB9oJzdBBZwn3Lu4mjxHTX3ebQnKaniV8AqedZEPHKOe6aQQwRS8TcT5O8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717610584; c=relaxed/simple; bh=5F0WRZAIFyT/53498dR8Vin7Zzzm6LhYVaUBgnMWhtU=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=BN93nv/rRIyhyceoz/nuFV5at2MXOSr/SktdA6+9lbJqGUmsykxNINbRZnJu5cNdwABTVKgfAxCo8QR9mNRZWVX2ukkzSAVWRswW/EoLmtK29bSWcuPadWU0adhPxK72aZRZv3xPWECxM1SuVturzYkjvIzrMPspWwOwcxidygY= 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=2sMENMgr; arc=none smtp.client-ip=209.85.219.201 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="2sMENMgr" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-df7a6530373so136774276.0 for ; Wed, 05 Jun 2024 11:03:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1717610582; x=1718215382; 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=xwrLVVIieFUQPopwc+1tOr/or/db/Iy6oXeR6vbSkEA=; b=2sMENMgr5YU0+uYrV9r88nXRoiLkdjubyiDnP+vRHYdDCX8uQ7kxV6eFUIVPz9gXcN VePpd9IhHPjdKDz/kZVPcAO4vG8LFdXIKZiA+xYjdLFJ/3eqHwmG3feqUqUVpyJtpMVu VHomo3WoBa4vwKbtMFq+nyuRlbURKig31XwAON6kx5ZA5WH2nxVoIwxwaZCqUoRbt46A KggIhcQNptrrGDJSvCKeDp5ALOU4bfrH5187eCLF3a4S9W/GGoYJhjjzHyvm4CnT03TA 50V589hxvpQib07iz3C9e9MorTXjYwHsGGtiGmp9MxFx0T9Ax8IdXo2nWi0p+sLKIXfv X+KQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717610582; x=1718215382; 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=xwrLVVIieFUQPopwc+1tOr/or/db/Iy6oXeR6vbSkEA=; b=g0smIpLqBAr3u9JOvzbFaqrrt9A/Q9kZbfukBrsXI79z5gXZhejdOJS2T3iqTwzUv5 P60aSPOx+VQZyOEJl21GqNUaWroGL9ddI9iK1K6cj3W+nbY0GSWaIc7ehl5jI81HO4Jc 6eEygtIcZT17mtmnDCYA5PhsKhjH26XDCGNAXq5UcAnvyWD15IUAZvRbIS0IiilSU97e Sr+B71yRvSkh3c4Y3+nHC3SRDQ5/DoArtXq4W/pK1S4r71PnGJ3Ii17RDnGSTaP8JsDy NssX/rYdWAz3KLsEjqFY0S72X3PLttmiggzHv3dQZREmCZY6CcRve0bbSk91sRp6N3tE vIJA== X-Forwarded-Encrypted: i=1; AJvYcCUyKuCUoemKOGKcWy6pIGGX2LcPEQaDjgbCROnUQeDypeLU3ypxDnwbqwP8RGc7L6ii1OSMIp/aSx7QgiB/I5aR2vVkd6JT3KGk X-Gm-Message-State: AOJu0Yz9YLKLDaCPB/6Z8WMDf/Ztd6fKD80acAx/dGt1ZqepG6ctMwIc TziYRd7kBk91XObPAQrH9AyyfM7ljaw3FsiBe7zdSkud0oeB3oZLhJjqHe52Xq44S+JmDKhhyNV uZbpNmp3EFQ== X-Google-Smtp-Source: AGHT+IE9F8AaFWy+zkoE1AAtvE0JQ7XHHDVuIM2gnYtU9d2txGGQvOGhBI3kC4/nhW85Sx5cKDFxLERd+BeUJQ== X-Received: from joychakr.c.googlers.com ([fda3:e722:ac3:cc00:4f:4b78:c0a8:6ea]) (user=joychakr job=sendgmr) by 2002:a05:6902:110c:b0:df7:9274:34e1 with SMTP id 3f1490d57ef6-dfadeb57766mr87616276.4.1717610581556; Wed, 05 Jun 2024 11:03:01 -0700 (PDT) Date: Wed, 5 Jun 2024 18:02:35 +0000 In-Reply-To: <20240605180238.2617808-1-joychakr@google.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240605180238.2617808-1-joychakr@google.com> X-Mailer: git-send-email 2.45.1.467.gbab1589fc0-goog Message-ID: <20240605180238.2617808-5-joychakr@google.com> Subject: [PATCH v1 14/17] thunderbolt: switch: 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/thunderbolt/switch.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 326433df5880..35424a65cd3a 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -301,7 +301,7 @@ int tb_switch_nvm_read(struct tb_switch *sw, unsigned int address, void *buf, return dma_port_flash_read(sw->dma_port, address, buf, size); } -static int nvm_read(void *priv, unsigned int offset, void *val, size_t bytes) +static ssize_t nvm_read(void *priv, unsigned int offset, void *val, size_t bytes) { struct tb_nvm *nvm = priv; struct tb_switch *sw = tb_to_switch(nvm->dev); @@ -321,10 +321,10 @@ static int nvm_read(void *priv, unsigned int offset, void *val, size_t bytes) pm_runtime_mark_last_busy(&sw->dev); pm_runtime_put_autosuspend(&sw->dev); - return ret; + return ret < 0 ? ret : bytes; } -static int nvm_write(void *priv, unsigned int offset, void *val, size_t bytes) +static ssize_t nvm_write(void *priv, unsigned int offset, void *val, size_t bytes) { struct tb_nvm *nvm = priv; struct tb_switch *sw = tb_to_switch(nvm->dev); @@ -342,7 +342,7 @@ static int nvm_write(void *priv, unsigned int offset, void *val, size_t bytes) ret = tb_nvm_write_buf(nvm, offset, val, bytes); mutex_unlock(&sw->tb->lock); - return ret; + return ret < 0 ? ret : bytes; } static int tb_switch_nvm_add(struct tb_switch *sw)