From 56e97078602996123d849b7621442a934aa19b77 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 4 Mar 2015 12:15:39 -0700 Subject: [PATCH] staging: comedi: ni_tiocmd: (!foo) preferred over (foo == NULL) Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/ni_tiocmd.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index d36c3abd3120..41735700e5f9 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -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; } -- 2.30.2