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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

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

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 <>

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