linux-kernel - [ 28/85] USB: iuu_phoenix: fix sysfs-attribute creation

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Date:	Thu, 25 Oct 2012 17:05:46 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	alan@...rguk.ukuu.org.uk, Yuanhan Liu <yuanhan.liu@...el.com>,
	Johan Hovold <jhovold@...il.com>
Subject: [ 28/85] USB: iuu_phoenix: fix sysfs-attribute creation

3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@...il.com>

commit 0978c9499944d0670338fd048a3bdb1624dc66dc upstream.

Make sure sysfs attributes are created at port probe.

A recent patch ("USB: iuu_phoenix: fix port-data memory leak") removed
the sysfs-attribute creation by mistake.

Reported-by: Yuanhan Liu <yuanhan.liu@...el.com>
Signed-off-by: Johan Hovold <jhovold@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/serial/iuu_phoenix.c |   14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -60,6 +60,8 @@ static int iuu_cardout;
 static bool xmas;
 static int vcc_default = 5;
 
+static int iuu_create_sysfs_attrs(struct usb_serial_port *port);
+static int iuu_remove_sysfs_attrs(struct usb_serial_port *port);
 static void read_rxcmd_callback(struct urb *urb);
 
 struct iuu_private {
@@ -83,6 +85,7 @@ struct iuu_private {
 static int iuu_port_probe(struct usb_serial_port *port)
 {
 	struct iuu_private *priv;
+	int ret;
 
 	priv = kzalloc(sizeof(struct iuu_private), GFP_KERNEL);
 	if (!priv)
@@ -115,6 +118,14 @@ static int iuu_port_probe(struct usb_ser
 
 	usb_set_serial_port_data(port, priv);
 
+	ret = iuu_create_sysfs_attrs(port);
+	if (ret) {
+		kfree(priv->writebuf);
+		kfree(priv->buf);
+		kfree(priv);
+		return ret;
+	}
+
 	return 0;
 }
 
@@ -122,6 +133,7 @@ static int iuu_port_remove(struct usb_se
 {
 	struct iuu_private *priv = usb_get_serial_port_data(port);
 
+	iuu_remove_sysfs_attrs(port);
 	kfree(priv->dbgbuf);
 	kfree(priv->writebuf);
 	kfree(priv->buf);
@@ -1221,8 +1233,6 @@ static struct usb_serial_driver iuu_devi
 	.num_ports = 1,
 	.bulk_in_size = 512,
 	.bulk_out_size = 512,
-	.port_probe = iuu_create_sysfs_attrs,
-	.port_remove = iuu_remove_sysfs_attrs,
 	.open = iuu_open,
 	.close = iuu_close,
 	.write = iuu_uart_write,


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