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media: imon: Fix null-ptr-deref in imon_probe
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Mon, 9 Oct 2017 18:14:48 +0000 (20:14 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 21 Nov 2017 08:21:17 +0000 (09:21 +0100)
commitc344019c48a92e559b7f910e53e0c6f9018680fb
tree9b61a5f5c45d0ef5da17edaed9f7e79adc3ca254
parent0cbac004e67307949714c176c8a7af9c1da980b9
media: imon: Fix null-ptr-deref in imon_probe

commit 58fd55e838276a0c13d1dc7c387f90f25063cbf3 upstream.

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>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/media/rc/imon.c