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

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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
2015-03-04 12:15:37 -07:00
committed by Greg Kroah-Hartman
parent c1bce7fd0d
commit 4ce82def8d
1 changed files with 2 additions and 2 deletions
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4
drivers/staging/comedi/drivers/ni_pcidio.c
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@@ -304,7 +304,7 @@ static int ni_pcidio_request_di_mite_channel(struct comedi_device *dev)
devpriv->di_mite_chan =
mite_request_channel_in_range(devpriv->mite,
devpriv->di_mite_ring, 1, 2);
if (devpriv->di_mite_chan == NULL) {
if (!devpriv->di_mite_chan) {
spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
dev_err(dev->class_dev, "failed to reserve mite dma channel\n");
return -EBUSY;
@@ -924,7 +924,7 @@ static int nidio_auto_attach(struct comedi_device *dev,
return ret;
devpriv->di_mite_ring = mite_alloc_ring(devpriv->mite);
if (devpriv->di_mite_ring == NULL)
if (!devpriv->di_mite_ring)
return -ENOMEM;
if (board->uses_firmware) {