patch "USB: serial: keyspan: handle unbound ports" added to usb-linus

This is a note to let you know that I've just added the patch titled

USB: serial: keyspan: handle unbound ports

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From 3018dd3fa114b13261e9599ddb5656ef97a1fa17 Mon Sep 17 00:00:00 2001
From: Johan Hovold <[email protected]>
Date: Fri, 17 Jan 2020 10:50:25 +0100
Subject: USB: serial: keyspan: handle unbound ports

Check for NULL port data in the control URB completion handlers to avoid dereferencing a NULL pointer in the unlikely case where a port device isn't bound to a driver (e.g. after an allocation failure on port probe()).

---
 drivers/usb/serial/keyspan.c | 4 ++++
 1 file changed, 4 insertions(+)

index e66a59ef43a1..aa3dbce22cfb 100644
@@ -1058,6 +1058,8 @@ static void	usa49_glocont_callback(struct urb *urb)
 	for (i = 0; i < serial->num_ports; ++i) {
 		port = serial->port[i];
 		p_priv = usb_get_serial_port_data(port);
+		if (!p_priv)
+			continue;
 
 		if (p_priv->resend_cont) {
 			dev_dbg(&port->dev, "%s - sending setup\n", __func__);

@@ -1459,6 +1461,8 @@ static void usa67_glocont_callback(struct urb *urb)
 	for (i = 0; i < serial->num_ports; ++i) {
 		port = serial->port[i];
 		p_priv = usb_get_serial_port_data(port);
+		if (!p_priv)
+			continue;
 
 		if (p_priv->resend_cont) {
 			dev_dbg(&port->dev, "%s - sending setup\n", __func__);

2.25.0