From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A7B5B4A99C; Mon, 1 Apr 2024 16:56:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711990589; cv=none; b=SLaKYac6aL3qopFZ/u05L8QUOxr44mITSbK30NKEpspX1PPHam3PwLnhJPPOZxqeLPE8DUuFpWXWwKwbvdjQ5/0iKNsK5VNYY4MeNEGuzGh2wbwc18BJ5Ru+4KaR5iuV2278Dhh+BDqfWvtbMdC67uoABTRuS7bQcCJlRF43XZ4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711990589; c=relaxed/simple; bh=7nMfq+98GN3Va2kqR5DAP9BtD+OQ9Eu8ctX6F4v0c90=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dtgkXgLRI0q1WIh4VkSbwciXkgUeEfLNQeJQ1w/bi5lx2jHyeppXETlPSpR6oRsezsobnBqOhttWBa1cYU49d+jTcl4xNMaoyjH5sh3jSMB2zLa6ZH+1yyswtQ7RHxwrJJJwpZkjPj3ISyIDxd2lXg7aRsLbuLpevj7FWdqzDsY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Ks8f27hb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Ks8f27hb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2289BC433F1; Mon, 1 Apr 2024 16:56:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1711990589; bh=7nMfq+98GN3Va2kqR5DAP9BtD+OQ9Eu8ctX6F4v0c90=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ks8f27hbFmJGQLWGwmcW9FG0DDKLHiuLuuWcoCpLc1nJ+ZVL6VXJkc7FTubzLmndu 7XNGoEjPLWoFAvgKy5vGVnBgwWIuMgHjB8oHUq0QHiXCR+bI1GH5tudDoUP1Fd8FMB qF/0WggYlYnT1eObhF3Rrvp7eLEv2WNLyUdYUTg8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kyle Tso , Guenter Roeck , Heikki Krogerus Subject: [PATCH 6.6 372/396] usb: typec: Return size of buffer if pd_set operation succeeds Date: Mon, 1 Apr 2024 17:47:01 +0200 Message-ID: <20240401152559.004142205@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240401152547.867452742@linuxfoundation.org> References: <20240401152547.867452742@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kyle Tso commit 53f5094fdf5deacd99b8655df692e9278506724d upstream. The attribute writing should return the number of bytes used from the buffer on success. Fixes: a7cff92f0635 ("usb: typec: USB Power Delivery helpers for ports and partners") Cc: stable@vger.kernel.org Signed-off-by: Kyle Tso Reviewed-by: Guenter Roeck Reviewed-by: Heikki Krogerus Link: https://lore.kernel.org/r/20240319074309.3306579-1-kyletso@google.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/typec/class.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -1264,6 +1264,7 @@ static ssize_t select_usb_power_delivery { struct typec_port *port = to_typec_port(dev); struct usb_power_delivery *pd; + int ret; if (!port->ops || !port->ops->pd_set) return -EOPNOTSUPP; @@ -1272,7 +1273,11 @@ static ssize_t select_usb_power_delivery if (!pd) return -EINVAL; - return port->ops->pd_set(port, pd); + ret = port->ops->pd_set(port, pd); + if (ret) + return ret; + + return size; } static ssize_t select_usb_power_delivery_show(struct device *dev,