net: emaclite: Use resource_size
Use the resource_size function instead of manually calculating the
resource size. This reduces the chance of introducing off-by-one
errors.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c
index e9381fe..93828d5 100644
--- a/drivers/net/xilinx_emaclite.c
+++ b/drivers/net/xilinx_emaclite.c
@@ -1171,7 +1171,7 @@
}
/* Get the virtual base address for the device */
- lp->base_addr = ioremap(r_mem.start, r_mem.end - r_mem.start + 1);
+ lp->base_addr = ioremap(r_mem.start, resource_size(&r_mem));
if (NULL == lp->base_addr) {
dev_err(dev, "EmacLite: Could not allocate iomem\n");
rc = -EIO;
@@ -1224,7 +1224,7 @@
return 0;
error1:
- release_mem_region(ndev->mem_start, r_mem.end - r_mem.start + 1);
+ release_mem_region(ndev->mem_start, resource_size(&r_mem));
error2:
xemaclite_remove_ndev(ndev);