diff options
Diffstat (limited to 'drivers/usb/gadget/configfs.c')
| -rw-r--r-- | drivers/usb/gadget/configfs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 1346b330b358..c102adbcd4e1 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -437,6 +437,12 @@ static int config_usb_cfg_link( * from another gadget or a random directory. * Also a function instance can only be linked once. */ + + if (gi->composite.gadget_driver.udc_name) { + ret = -EINVAL; + goto out; + } + list_for_each_entry(iter, &gi->available_func, cfs_list) { if (iter != fi) continue; |