Driver core holds a reference to the USB interface and its parent USB device while the interface is bound to a driver and there is no need to take additional references unless the structures are needed after disconnect. Drop the redundant device reference to reduce cargo culting, make it easier to spot drivers where an extra reference is needed, and reduce the risk of memory leaks when drivers fail to release it. Signed-off-by: Johan Hovold --- drivers/net/wireless/marvell/libertas_tf/if_usb.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/wireless/marvell/libertas_tf/if_usb.c b/drivers/net/wireless/marvell/libertas_tf/if_usb.c index f49151c18b79..07b38f2b8f58 100644 --- a/drivers/net/wireless/marvell/libertas_tf/if_usb.c +++ b/drivers/net/wireless/marvell/libertas_tf/if_usb.c @@ -223,7 +223,6 @@ static int if_usb_probe(struct usb_interface *intf, if (!priv) goto dealloc; - usb_get_dev(udev); usb_set_intfdata(intf, cardp); return 0; @@ -258,7 +257,6 @@ static void if_usb_disconnect(struct usb_interface *intf) kfree(cardp); usb_set_intfdata(intf, NULL); - usb_put_dev(interface_to_usbdev(intf)); lbtf_deb_leave(LBTF_DEB_MAIN); } -- 2.52.0