The comedi subdevice (*cancel) function can only be called by the core if the subdevice supports async commands. Move the initialization of this callback to it is only set if async commands are enabled. Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx> Cc: Ian Abbott <abbotti@xxxxxxxxx> Cc: Greg Kroah-Hartman <gregk@xxxxxxxxxxxxxxxxxxx> --- drivers/staging/comedi/drivers/ni_mio_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 8303d66..2ab267b 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -5559,11 +5559,11 @@ static int ni_E_init(struct comedi_device *dev, s->subdev_flags |= SDF_CMD_WRITE; s->do_cmd = &ni_ao_cmd; s->do_cmdtest = &ni_ao_cmdtest; + s->cancel = &ni_ao_reset; s->len_chanlist = board->n_aochan; if (!devpriv->is_m_series) s->munge = ni_ao_munge; } - s->cancel = &ni_ao_reset; } else { s->type = COMEDI_SUBD_UNUSED; } -- 1.9.3 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel