diff options
| -rw-r--r-- | drivers/usb/gadget/composite.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 3e7ae70..611fe89 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1451,8 +1451,22 @@ unknown: struct usb_configuration *c; c = cdev->config; - if (c && c->setup) + if (!c) + goto done; + + /* try current config's setup */ + if (c->setup) { value = c->setup(c, ctrl); + goto done; + } + + /* try the only function in the current config */ + if (!list_is_singular(&c->functions)) + goto done; + f = list_first_entry(&c->functions, struct usb_function, + list); + if (f->setup) + value = f->setup(f, ctrl); } goto done; |