From ac90e36592ea5171c4e70f58b39a782d871a7d9f Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 1 Jul 2008 13:18:20 -0700 Subject: usb_gadget: composite cdc gadget fault handling These two fixes ensure the new "CDC Composite Device" gadget fails cleanly when it's loaded on hardware that can't support this particular gadget driver. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/u_serial.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/usb/gadget/u_serial.c') diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 88d4f5452c4..abf9505d3a7 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -1090,6 +1090,9 @@ void gserial_cleanup(void) unsigned i; struct gs_port *port; + if (!gs_tty_driver) + return; + /* start sysfs and /dev/ttyGS* node removal */ for (i = 0; i < n_ports; i++) tty_unregister_device(gs_tty_driver, i); -- cgit v1.2.3