USB: usb-serial: replace shutdown with disconnect, release
This patch (as1254) splits up the shutdown method of usb_serial_driver
into a disconnect and a release method.
The problem is that the usb-serial core was calling shutdown during
disconnect handling, but drivers didn't expect it to be called until
after all the open file references had been closed. The result was an
oops when the close method tried to use memory that had been
deallocated by shutdown.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 76a3cc3..96873a7 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -121,8 +121,8 @@
return 0;
}
-/* Shutdown function */
-static void iuu_shutdown(struct usb_serial *serial)
+/* Release function */
+static void iuu_release(struct usb_serial *serial)
{
struct usb_serial_port *port = serial->port[0];
struct iuu_private *priv = usb_get_serial_port_data(port);
@@ -1202,7 +1202,7 @@
.tiocmset = iuu_tiocmset,
.set_termios = iuu_set_termios,
.attach = iuu_startup,
- .shutdown = iuu_shutdown,
+ .release = iuu_release,
};
static int __init iuu_init(void)