diff options
| author |   Dan Carpenter <error27@gmail.com> | 2010-06-30 13:12:01 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-06-30 13:12:01 -0700 |
| commit | 7e307c7ad5340b226966da6e564ec7f717da3adb (patch) | |
| tree | f9e6d1a1fb34dc37cf45ac8dbf2c6eb45725ab74 /drivers/net/cpmac.c | |
| parent | act_nat: use stack variable (diff) | |
| download | linux-dev-7e307c7ad5340b226966da6e564ec7f717da3adb.tar.xz linux-dev-7e307c7ad5340b226966da6e564ec7f717da3adb.zip | |
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: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/cpmac.c')
| -rw-r--r-- | drivers/net/cpmac.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c index 3c58db595285..1756d28250d4 100644 --- a/drivers/net/cpmac.c +++ b/drivers/net/cpmac.c @@ -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 @@ fail_alloc: 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) { |