f_rndis checks if rndis_string_defs[0].id is null to setup rndis and allocate string ids when it is bound to the first configuration: /* maybe allocate device-global string IDs */ if (rndis_string_defs[0].id == 0) { /* ... and setup RNDIS itself */ status = rndis_init(); if (status < 0) return status; rndis_string_defs[0].id must be reset to 0 on unbind for rndis to be correctly initialized on the next composite_bind. Signed-off-by: Benoit Goby <benoit@xxxxxxxxxxx> --- drivers/usb/gadget/f_rndis.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 704d1d9..707ec37 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -819,6 +819,7 @@ rndis_unbind(struct usb_configuration *c, struct usb_function *f) rndis_deregister(rndis->config); rndis_exit(); + rndis_string_defs[0].id = 0; if (gadget_is_superspeed(c->cdev->gadget)) usb_free_descriptors(f->ss_descriptors); -- 1.7.3.1 -- 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