Gadgets endpoint driver data is a criteria to judge that whether the endpoints are in use or not. When gadget gets assigned an endpoint from endpoint list, they check its driver data if the driver data is NULL. If the driver data is not NULL then they regard it as in use. Therefore all of gadgets should reset their endpoints driver data to NULL as they are disabled. Otherwise it causes a leak of endpoint resource. Signed-off-by: Peter Oh <poh@xxxxxxxxxxxx> --- drivers/usb/gadget/f_mass_storage.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 313b835..a01d7d3 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2260,10 +2260,12 @@ reset: /* Disable the endpoints */ if (fsg->bulk_in_enabled) { usb_ep_disable(fsg->bulk_in); + fsg->bulk_in->driver_data = NULL; fsg->bulk_in_enabled = 0; } if (fsg->bulk_out_enabled) { usb_ep_disable(fsg->bulk_out); + fsg->bulk_out->driver_data = NULL; fsg->bulk_out_enabled = 0; } -- 1.8.0.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html