usb: gadget: rndis: Fix re-binding f_rndis
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@android.com>
diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c
index 7b1cf18..f377c10 100644
--- a/drivers/usb/gadget/f_rndis.c
+++ b/drivers/usb/gadget/f_rndis.c
@@ -819,6 +819,7 @@
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);