staging: comedi: ni_660x: remove BUG_ON() in ni_660x_request_mite_channel()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Tue, 22 Mar 2016 18:10:25 +0000 (11:10 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 28 Mar 2016 14:30:36 +0000 (07:30 -0700)
commitff1e71be56d6c493084eac86afa0aeb59bca9c53
tree7bc55bcf0367d7f58153d48acf82b651464554e4
parent518d38423b48ad23b2f4b13dd9a027aa37423f1d
staging: comedi: ni_660x: remove BUG_ON() in ni_660x_request_mite_channel()

This BUG_ON() happens if a mite DMA channel is already requested when an
ansynchronous command is started for one of the counter subdevices.

The comedi core will only call the (*do_cmd) if the subdevice is not busy.
In this driver, the (*cancel) for the subdevice will always release any
requested mite DMA channel.

Remove the BUG_ON() which can never occur.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/ni_660x.c