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Commit 56e97078 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
Browse files

staging: comedi: ni_tiocmd: (!foo) preferred over (foo == NULL) 



Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9bacea57

drivers/staging/comedi/drivers/ni_tiocmd.c

+3 −3
Original line number Diff line number Diff line
@@ -201,7 +201,7 @@ int ni_tio_cmd(struct comedi_device *dev, struct comedi_subdevice *s) 
	unsigned long flags;



	spin_lock_irqsave(&counter->lock, flags);

	if (counter->mite_chan == NULL) {

	if (!counter->mite_chan) {

		dev_err(counter->counter_dev->dev->class_dev,

			"commands only supported with DMA.  ");

		dev_err(counter->counter_dev->dev->class_dev,
@@ -329,7 +329,7 @@ static int should_ack_gate(struct ni_gpct *counter) 
	case ni_gpct_variant_e_series:

		spin_lock_irqsave(&counter->lock, flags);

		{

			if (counter->mite_chan == NULL ||

			if (!counter->mite_chan ||

			    counter->mite_chan->dir != COMEDI_INPUT ||

			    (mite_done(counter->mite_chan))) {

				retval = 1;
@@ -443,7 +443,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter, 
		break;

	}

	spin_lock_irqsave(&counter->lock, flags);

	if (counter->mite_chan == NULL) {

	if (!counter->mite_chan) {

		spin_unlock_irqrestore(&counter->lock, flags);

		return;

	}