USB: mos7840: fix port-device leak in error path

commit 3eb55cc4ed88eee3b5230f66abcdbd2a91639eda upstream.

The driver set the usb-serial port pointers to NULL on errors in attach,
effectively preventing usb-serial core from decrementing the port ref
counters and releasing the port devices and associated data.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 9c338caff0b4d5b1f2351fbb45868ffbe3933e21..c802c77e7292e2c71d0591ee29a0afd2a809fddb 100644 (file)
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2569,7 +2569,6 @@ error:
                kfree(mos7840_port->ctrl_buf);
                usb_free_urb(mos7840_port->control_urb);
                kfree(mos7840_port);
-               serial->port[i] = NULL;
        }
        return status;
 }