usb: gadget: printer: don't access file global usb_printer_gadget in function's code

The printer_dev can be recovered from printer_func_unbind() function's
parameters.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/legacy/printer.c b/drivers/usb/gadget/legacy/printer.c
index 3206ebcdd7a6a28bcc4ab90c8b9ae86d5a77354b..806475c19934d5a312ae512f29d5eddae2bf91d2 100644 (file)
--- a/drivers/usb/gadget/legacy/printer.c
+++ b/drivers/usb/gadget/legacy/printer.c
@@ -1159,7 +1159,7 @@ static void printer_func_unbind(struct usb_configuration *c,
        struct printer_dev      *dev;
        struct usb_request      *req;
 
-       dev = &usb_printer_gadget;
+       dev = container_of(f, struct printer_dev, function);
 
        device_destroy(usb_gadget_class, g_printer_devno);