[patch] ftmac100: use resource_size()
From: Dan Carpenter <hidden>
Date: 2011-03-19 04:39:34
Also in:
kernel-janitors
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The calculation is off-by-one. It should be "end - start + 1". This patch fixes it to use resource_size() instead. Oddly, the code already uses resource size correctly a couple lines earlier when it calls request_mem_region() for this memory. Signed-off-by: Dan Carpenter <redacted>
diff --git a/drivers/net/ftmac100.c b/drivers/net/ftmac100.c
index 1d6f4b8..a316619 100644
--- a/drivers/net/ftmac100.c
+++ b/drivers/net/ftmac100.c@@ -1102,7 +1102,7 @@ static int ftmac100_probe(struct platform_device *pdev) goto err_req_mem; } - priv->base = ioremap(res->start, res->end - res->start); + priv->base = ioremap(res->start, resource_size(res)); if (!priv->base) { dev_err(&pdev->dev, "Failed to ioremap ethernet registers\n"); err = -EIO;