staging: comedi: ni_pcidio: (!foo) preferred over (foo == NULL) (4ce82def) · Commits · 戴 / test

drivers/staging/comedi/drivers/ni_pcidio.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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) {