From: Alexey Khoroshilov Date: Mon, 27 Jan 2014 20:25:47 +0000 (-0800) Subject: Input: gtco - fix usb_dev leak X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=1f906f8376c2d53dca347b15c0caef71d91087b4;p=deliverable%2Flinux.git Input: gtco - fix usb_dev leak There is usb_get_dev() in gtco_probe(), but there is no usb_put_dev() anywhere in the driver. As pointed out by Dmitry Torokhov: The lifetime of gtco structure is already directly tied to lifetime of usb_dev: when destroying usb_dev driver core will call remove() function of currently bound driver (in our case gtco) which will destroy gtco memory. Taking additional reference is not needed here. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov Signed-off-by: Dmitry Torokhov --- diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c index caecffe8caff..858045694e9d 100644 --- a/drivers/input/tablet/gtco.c +++ b/drivers/input/tablet/gtco.c @@ -848,7 +848,7 @@ static int gtco_probe(struct usb_interface *usbinterface, gtco->inputdevice = input_dev; /* Save interface information */ - gtco->usbdev = usb_get_dev(interface_to_usbdev(usbinterface)); + gtco->usbdev = interface_to_usbdev(usbinterface); gtco->intf = usbinterface; /* Allocate some data for incoming reports */