提交 7e307c7a 编写于 作者: D Dan Carpenter 提交者: David S. Miller

cpmac: use resource_size()

The original code is off by one because we should start counting at
zero.  So the size of the resource is end - start + 1.  I switched it to
use resource_size() to do the calculation.
Signed-off-by: NDan Carpenter <error27@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 504f85c9
......@@ -964,7 +964,7 @@ static int cpmac_open(struct net_device *dev)
struct sk_buff *skb;
mem = platform_get_resource_byname(priv->pdev, IORESOURCE_MEM, "regs");
if (!request_mem_region(mem->start, mem->end - mem->start, dev->name)) {
if (!request_mem_region(mem->start, resource_size(mem), dev->name)) {
if (netif_msg_drv(priv))
printk(KERN_ERR "%s: failed to request registers\n",
dev->name);
......@@ -972,7 +972,7 @@ static int cpmac_open(struct net_device *dev)
goto fail_reserve;
}
priv->regs = ioremap(mem->start, mem->end - mem->start);
priv->regs = ioremap(mem->start, resource_size(mem));
if (!priv->regs) {
if (netif_msg_drv(priv))
printk(KERN_ERR "%s: failed to remap registers\n",
......@@ -1049,7 +1049,7 @@ static int cpmac_open(struct net_device *dev)
iounmap(priv->regs);
fail_remap:
release_mem_region(mem->start, mem->end - mem->start);
release_mem_region(mem->start, resource_size(mem));
fail_reserve:
return res;
......@@ -1077,7 +1077,7 @@ static int cpmac_stop(struct net_device *dev)
free_irq(dev->irq, dev);
iounmap(priv->regs);
mem = platform_get_resource_byname(priv->pdev, IORESOURCE_MEM, "regs");
release_mem_region(mem->start, mem->end - mem->start);
release_mem_region(mem->start, resource_size(mem));
priv->rx_head = &priv->desc_ring[CPMAC_QUEUES];
for (i = 0; i < priv->ring_size; i++) {
if (priv->rx_head[i].skb) {
......
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