linux-kernel - [PATCH] at_hdmac.c: use resource

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Date:	Thu, 10 Dec 2009 20:29:52 -0500
From:	"H Hartley Sweeten" <hartleys@...ionengravers.com>
To:	"kernel list" <linux-kernel@...r.kernel.org>
Cc:	<nicolas.ferre@...el.com>
Subject: [PATCH] at_hdmac.c: use resource_size()

Use resource_size() for ioremap.

Signed-off-by: H Hartley Sweeten <hsweeten@...ionengravers.com>
Cc: Nicolas Ferre <nicolas.ferre@...el.com>
---

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index c52ac9e..e16057b 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1012,7 +1012,7 @@ static int __init at_dma_probe(struct platform_device *pdev)
 	atdma->dma_common.cap_mask = pdata->cap_mask;
 	atdma->all_chan_mask = (1 << pdata->nr_channels) - 1;
 
-	size = io->end - io->start + 1;
+	size = resource_size(io);
 	if (!request_mem_region(io->start, size, pdev->dev.driver->name)) {
 		err = -EBUSY;
 		goto err_kfree; 
--
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