Commit 58fd55e8 authored Oct 09, 2017 by Arvind Yadav Committed by Mauro Carvalho Chehab Oct 27, 2017

media: imon: Fix null-ptr-deref in imon_probe



It seems that the return value of usb_ifnum_to_if() can be NULL and
needs to be checked.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

parent bbae6156

drivers/media/rc/imon.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -2515,6 +2515,11 @@ static int imon_probe(struct usb_interface *interface,
		mutex_lock(&driver_lock);

		first_if = usb_ifnum_to_if(usbdev, 0);
		if (!first_if) {
		ret = -ENODEV;
		goto fail;
		}

		first_if_ctx = usb_get_intfdata(first_if);

		if (ifnum == 0) {