Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Thu, 22 Jun 2023 23:04:23 +0800
In-Reply-To: <20230622150423.3726894-1-kyletso@google.com>
Mime-Version: 1.0
References: <20230622150423.3726894-1-kyletso@google.com>
Message-ID: <20230622150423.3726894-4-kyletso@google.com>
Subject: [PATCH 3/3] usb: typec: Use sysfs_emit_at when concatenating the string
From:   Kyle Tso <kyletso@google.com>
To:     heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org
Cc:     badhri@google.com, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org, Kyle Tso <kyletso@google.com>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

The buffer address used in sysfs_emit should be aligned to PAGE_SIZE.
Use sysfs_emit_at instead to offset the buffer.

Fixes: a7cff92f0635 ("usb: typec: USB Power Delivery helpers for ports and partners")
Signed-off-by: Kyle Tso <kyletso@google.com>
---
 drivers/usb/typec/class.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index e7312295f8c9..9c1dbf3c00e0 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -1288,9 +1288,9 @@ static ssize_t select_usb_power_delivery_show(struct device *dev,
 
 	for (i = 0; pds[i]; i++) {
 		if (pds[i] == port->pd)
-			ret += sysfs_emit(buf + ret, "[%s] ", dev_name(&pds[i]->dev));
+			ret += sysfs_emit_at(buf, ret, "[%s] ", dev_name(&pds[i]->dev));
 		else
-			ret += sysfs_emit(buf + ret, "%s ", dev_name(&pds[i]->dev));
+			ret += sysfs_emit_at(buf, ret, "%s ", dev_name(&pds[i]->dev));
 	}
 
 	buf[ret - 1] = '\n';
-- 
2.41.0.162.gfafddb0af9-goog