linux-kernel - [PATCH 0/2] staging: comedi: ni

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Date:   Tue, 14 Jan 2020 18:25:30 +0000
From:   Ian Abbott <abbotti@....co.uk>
To:     devel@...verdev.osuosl.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ian Abbott <abbotti@....co.uk>,
        H Hartley Sweeten <hsweeten@...ionengravers.com>,
        linux-kernel@...r.kernel.org, Spencer Olson <olsonse@...ch.edu>
Subject: [PATCH 0/2] staging: comedi: ni_routes: fix some regressions

Fix some regressions resulting from the routing functionality
implemented for the National Instruments comedi drivers in kernel 4.20
when board-specific routing information is absent.

Patch 1 fixes a null pointer dereference, but the set-up of asynchronous
commands that use external triggers on boards with missing
board-specific routing information will now fail gracefully with an
error.

Patch 2 allows routing values for the device family to be filled in even
if the board-specific routing information is missing, which should allow
asynchronous commands that use external triggers to be used on these
boards.

1) staging: comedi: ni_routes: fix null dereference in ni_find_route_source()
2) staging: comedi: ni_routes: allow partial routing information

 drivers/staging/comedi/drivers/ni_routes.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Cc: Spencer Olson <olsonse@...ch.edu>