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staging: comedi: ni_mio_common: (*cancel) only works with async cmd support

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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@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten
2014-07-14 12:23:54 -07:00
committed by Greg Kroah-Hartman
parent c5f2649999
commit daabc8a631
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/comedi/drivers/ni_mio_common.c
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@@ -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;
}