Currently when driver->match_existing_only is true, the error return is set to -EBUSY however ret is then set to 0 at the end of the if/else statement. I believe the ret = 0 statement should be set in the else part of the if statement and not at the end to ensure -EBUSY is being returned correctly. Detected by clang scan: drivers/usb/gadget/udc/core.c:1558:4: warning: Value stored to 'ret' is never read [deadcode.DeadStores] Fixes: fc274c1e9973 ("USB: gadget: Add a new bus for gadgets") Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx> --- drivers/usb/gadget/udc/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index 61790592b2c8..3281d8a3dae7 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -1559,8 +1559,8 @@ int usb_gadget_register_driver_owner(struct usb_gadget_driver *driver, } else { pr_info("%s: couldn't find an available UDC\n", driver->function); + ret = 0; } - ret = 0; } mutex_unlock(&udc_lock); -- 2.35.1