Staging: comedi: Remove instances of assignments in conditionals

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/icp_multi.c

@@ -882,7 +882,8 @@ static int icp_multi_attach(comedi_device *dev, comedi_devconfig *it)
 	printk("icp_multi EDBG: BGN: icp_multi_attach(...)\n");
 
 	/*  Alocate private data storage space */
-	if ((ret = alloc_private(dev, sizeof(icp_multi_private))) < 0)
+	ret = alloc_private(dev, sizeof(icp_multi_private));
+	if (ret < 0)
 		return ret;
 
 	/*  Initialise list of PCI cards in system, if not already done so */
@@ -899,9 +900,11 @@ static int icp_multi_attach(comedi_device *dev, comedi_devconfig *it)
 	printk("Anne's comedi%d: icp_multi: board=%s", dev->minor,
 		this_board->name);
 
-	if ((card = select_and_alloc_pci_card(PCI_VENDOR_ID_ICP,
-				this_board->device_id, it->options[0],
-				it->options[1])) == NULL)
+	card = select_and_alloc_pci_card(PCI_VENDOR_ID_ICP,
+					 this_board->device_id, it->options[0],
+					 it->options[1]);
+
+	if (card == NULL)
 		return -EIO;
 
 	devpriv->card = card;
@@ -943,9 +946,9 @@ static int icp_multi_attach(comedi_device *dev, comedi_devconfig *it)
 	if (this_board->n_ctrs)
 		n_subdevices++;
 
-	if ((ret = alloc_subdevices(dev, n_subdevices)) < 0) {
+	ret = alloc_subdevices(dev, n_subdevices);
+	if ( ret < 0 )
 		return ret;
-	}
 
 	icp_multi_reset(dev);
 

drivers/staging/comedi/drivers/icp_multi.h

@@ -245,8 +245,9 @@ static struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id,
 	int err;
 
 	if ((pci_bus < 1) & (pci_slot < 1)) {	/* use autodetection */
-		if ((card = find_free_pci_card_by_device(vendor_id,
-					device_id)) == NULL) {
+
+		card = find_free_pci_card_by_device(vendor_id,device_id);
+		if (card == NULL) {
 			rt_printk(" - Unused card not found in system!\n");
 			return NULL;
 		}
@@ -266,7 +267,8 @@ static struct pcilst_struct *select_and_alloc_pci_card(unsigned short vendor_id,
 		}
 	}
 
-	if ((err = pci_card_alloc(card)) != 0) {
+	err = pci_card_alloc(card);
+	if ( err != 0) {
 		if (err > 0)
 			rt_printk(" - Can't allocate card!\n");
 		/* else: error already printed. */

drivers/staging/comedi/drivers/rtd520.c

@@ -779,7 +779,8 @@ static int rtd_attach(comedi_device *dev, comedi_devconfig *it)
 	devpriv->pci_dev = pcidev;
 	dev->board_name = thisboard->name;
 
-	if ((ret = comedi_pci_enable(pcidev, DRV_NAME)) < 0) {
+	ret = comedi_pci_enable(pcidev, DRV_NAME);
+	if (ret < 0) {
 		printk("Failed to enable PCI device and request regions.\n");
 		return ret;
 	}
@@ -918,8 +919,10 @@ static int rtd_attach(comedi_device *dev, comedi_devconfig *it)
 	/* TODO: set user out source ??? */
 
 	/* check if our interrupt is available and get it */
-	if ((ret = comedi_request_irq(devpriv->pci_dev->irq, rtd_interrupt,
-				IRQF_SHARED, DRV_NAME, dev)) < 0) {
+	ret = comedi_request_irq(devpriv->pci_dev->irq, rtd_interrupt,
+				 IRQF_SHARED, DRV_NAME, dev);
+
+	if (ret < 0) {
 		printk("Could not get interrupt! (%u)\n",
 			devpriv->pci_dev->irq);
 		return ret;

drivers/staging/comedi/drivers/s626.c

@@ -525,7 +525,8 @@ static int s626_attach(comedi_device *dev, comedi_devconfig *it)
 		return -ENODEV;
 	}
 
-	if ((result = comedi_pci_enable(pdev, "s626")) < 0) {
+	result = comedi_pci_enable(pdev, "s626");
+	if (result < 0) {
 		printk("s626_attach: comedi_pci_enable fails\n");
 		return -ENODEV;
 	}
@@ -552,9 +553,10 @@ static int s626_attach(comedi_device *dev, comedi_devconfig *it)
 		/* adc buffer allocation */
 		devpriv->allocatedBuf = 0;
 
-		if ((devpriv->ANABuf.LogicalBase =
-				pci_alloc_consistent(devpriv->pdev, DMABUF_SIZE,
-					&appdma)) == NULL) {
+		devpriv->ANABuf.LogicalBase =
+			pci_alloc_consistent(devpriv->pdev, DMABUF_SIZE, &appdma);
+
+		if (devpriv->ANABuf.LogicalBase == NULL) {
 			printk("s626_attach: DMA Memory mapping error\n");
 			return -ENOMEM;
 		}
@@ -565,9 +567,10 @@ static int s626_attach(comedi_device *dev, comedi_devconfig *it)
 
 		devpriv->allocatedBuf++;
 
-		if ((devpriv->RPSBuf.LogicalBase =
-				pci_alloc_consistent(devpriv->pdev, DMABUF_SIZE,
-					&appdma)) == NULL) {
+		devpriv->RPSBuf.LogicalBase =
+			pci_alloc_consistent(devpriv->pdev, DMABUF_SIZE,  &appdma);
+
+		if (devpriv->RPSBuf.LogicalBase == NULL) {
 			printk("s626_attach: DMA Memory mapping error\n");
 			return -ENOMEM;
 		}
@@ -593,8 +596,10 @@ static int s626_attach(comedi_device *dev, comedi_devconfig *it)
 	if (dev->irq == 0) {
 		printk(" unknown irq (bad)\n");
 	} else {
-		if ((ret = comedi_request_irq(dev->irq, s626_irq_handler,
-					IRQF_SHARED, "s626", dev)) < 0) {
+		ret = comedi_request_irq(dev->irq, s626_irq_handler,
+					 IRQF_SHARED, "s626", dev);
+
+		if (ret < 0) {
 			printk(" irq not available\n");
 			dev->irq = 0;
 		}

drivers/staging/comedi/kcomedilib/kcomedilib_main.c

@@ -256,7 +256,8 @@ int comedi_do_insn(comedi_t *d, comedi_insn *insn)
 
 		/* XXX check lock */
 
-		if ((ret = check_chanlist(s, 1, &insn->chanspec)) < 0) {
+		ret = check_chanlist(s, 1, &insn->chanspec);
+		if (ret < 0) {
 			rt_printk("bad chanspec\n");
 			ret = -EINVAL;
 			goto error;
@@ -443,7 +444,9 @@ int comedi_cancel(comedi_t *d, unsigned int subdevice)
 	if (!s->cancel || !s->async)
 		return -EINVAL;
 
-	if ((ret = s->cancel(dev, s)))
+	ret = s->cancel(dev, s);
+
+	if (ret)
 		return ret;
 
 #ifdef CONFIG_COMEDI_RT