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Gadget function drivers often have goto-based error handling in their bind paths, which can be bug-prone. Refactoring these paths to use __free() scope-based cleanup is desirable, but currently blocked. The blocker is that usb_ep_free_request(ep, req) requires two parameters, while the __free() mechanism can only pass a pointer to the request itself. Store an endpoint pointer in the struct usb_request. The pointer is populated centrally in usb_ep_alloc_request() on every successful allocation, making the request object self-contained. Signed-off-by: Kuen-Han Tsai <khtsai@google.com> Link: https://lore.kernel.org/r/20250916-ready-v1-1-4997bf277548@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250916-ready-v1-1-4997bf277548@google.com