Fix whitespace and other problems reported by checkpatch.

This didi find a real bug in that the setup code was returning
positive value for errors which goes against convention and might have
caused a problem.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>


--- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c	2014-07-18 08:47:24.709604886 -0700
+++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c	2014-07-18 09:01:42.336616148 -0700
@@ -65,7 +65,7 @@ igbuio_get_uio_pci_dev(struct uio_info *
 }
 
 /* sriov sysfs */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 34)
 static int pci_num_vf(struct pci_dev *dev)
 	struct iov {
 		int pos;
@@ -75,7 +75,7 @@ static int pci_num_vf(struct pci_dev *de
 		u16 total;
 		u16 initial;
 		u16 nr_virtfn;
-	} *iov = (struct iov*)dev->sriov;
+	} *iov = (struct iov *)dev->sriov;
 
 	if (!dev->is_physfn)
 		return 0;
@@ -204,9 +204,9 @@ store_max_read_request_size(struct devic
 
 static DEVICE_ATTR(max_vfs, S_IRUGO | S_IWUSR, show_max_vfs, store_max_vfs);
 #ifdef RTE_PCI_CONFIG
-static DEVICE_ATTR(extended_tag, S_IRUGO | S_IWUSR, show_extended_tag, \
+static DEVICE_ATTR(extended_tag, S_IRUGO | S_IWUSR, show_extended_tag,
 	store_extended_tag);
-static DEVICE_ATTR(max_read_request_size, S_IRUGO | S_IWUSR, \
+static DEVICE_ATTR(max_read_request_size, S_IRUGO | S_IWUSR,
 	show_max_read_request_size, store_max_read_request_size);
 #endif
 
@@ -216,7 +216,7 @@ static struct attribute *dev_attrs[] = {
 	&dev_attr_extended_tag.attr,
 	&dev_attr_max_read_request_size.attr,
 #endif
-        NULL,
+	NULL,
 };
 
 static const struct attribute_group dev_attr_grp = {
@@ -224,7 +224,7 @@ static const struct attribute_group dev_
 };
 
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
 /* Check if INTX works to control irq's.
  * Set's INTX_DISABLE flag and reads it back
  */
@@ -378,6 +378,7 @@ static int
 igbuio_dom0_mmap_phys(struct uio_info *info, struct vm_area_struct *vma)
 {
 	int idx;
+
 	idx = (int)vma->vm_pgoff;
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	vma->vm_page_prot.pgprot |= _PAGE_IOMAP;
@@ -400,8 +401,9 @@ igbuio_dom0_pci_mmap(struct uio_info *in
 
 	if (vma->vm_pgoff >= MAX_UIO_MAPS)
 		return -EINVAL;
-	if(info->mem[vma->vm_pgoff].size == 0)
-		return  -EINVAL;
+
+	if (info->mem[vma->vm_pgoff].size == 0)
+		return -EINVAL;
 
 	idx = (int)vma->vm_pgoff;
 	switch (info->mem[idx].memtype) {
@@ -423,8 +425,8 @@ igbuio_pci_setup_iomem(struct pci_dev *d
 	unsigned long addr, len;
 	void *internal_addr;
 
-	if (sizeof(info->mem) / sizeof (info->mem[0]) <= n)
-		return (EINVAL);
+	if (sizeof(info->mem) / sizeof(info->mem[0]) <= n)
+		return -EINVAL;
 
 	addr = pci_resource_start(dev, pci_bar);
 	len = pci_resource_len(dev, pci_bar);
@@ -448,20 +450,20 @@ igbuio_pci_setup_ioport(struct pci_dev *
 {
 	unsigned long addr, len;
 
-	if (sizeof(info->port) / sizeof (info->port[0]) <= n)
-		return (EINVAL);
+	if (sizeof(info->port) / sizeof(info->port[0]) <= n)
+		return -EINVAL;
 
 	addr = pci_resource_start(dev, pci_bar);
 	len = pci_resource_len(dev, pci_bar);
 	if (addr == 0 || len == 0)
-		return (-1);
+		return -EINVAL;
 
 	info->port[n].name = name;
 	info->port[n].start = addr;
 	info->port[n].size = len;
 	info->port[n].porttype = UIO_PORT_X86;
 
-	return (0);
+	return 0;
 }
 
 /* Unmap previously ioremap'd resources */
@@ -469,6 +471,7 @@ static void
 igbuio_pci_release_iomem(struct uio_info *info)
 {
 	int i;
+
 	for (i = 0; i < MAX_UIO_MAPS; i++) {
 		if (info->mem[i].internal_addr)
 			iounmap(info->mem[i].internal_addr);
@@ -497,14 +500,16 @@ igbuio_setup_bars(struct pci_dev *dev, s
 				pci_resource_start(dev, i) != 0) {
 			flags = pci_resource_flags(dev, i);
 			if (flags & IORESOURCE_MEM) {
-				if ((ret = igbuio_pci_setup_iomem(dev, info,
-						iom, i, bar_names[i])) != 0)
-					return (ret);
+				ret = igbuio_pci_setup_iomem(dev, info, iom,
+							     i, bar_names[i]);
+				if (ret != 0)
+					return ret;
 				iom++;
 			} else if (flags & IORESOURCE_IO) {
-				if ((ret = igbuio_pci_setup_ioport(dev, info,
-						iop, i, bar_names[i])) != 0)
-					return (ret);
+				ret = igbuio_pci_setup_ioport(dev, info, iop,
+							      i, bar_names[i]);
+				if (ret != 0)
+					return ret;
 				iop++;
 			}
 		}
@@ -513,7 +518,7 @@ igbuio_setup_bars(struct pci_dev *dev, s
 	return (iom != 0) ? ret : -ENOENT;
 }
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0)
 static int __devinit
 #else
 static int