The size of the requested and ioremaped memory is off by 1.
Use resource_size() to get the correct value.
Signed-off-by: H Hartley Sweeten <[email protected]>
Cc: Dan Williams <[email protected]>
---
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index 645ca8d..ca6e6a0 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -1470,7 +1470,7 @@ static int __devinit iop_adma_probe(struct platform_device *pdev)
return -ENODEV;
if (!devm_request_mem_region(&pdev->dev, res->start,
- res->end - res->start, pdev->name))
+ resource_size(res), pdev->name))
return -EBUSY;
adev = kzalloc(sizeof(*adev), GFP_KERNEL);
@@ -1542,7 +1542,7 @@ static int __devinit iop_adma_probe(struct platform_device *pdev)
iop_chan->device = adev;
iop_chan->mmr_base = devm_ioremap(&pdev->dev, res->start,
- res->end - res->start);
+ resource_size(res));
if (!iop_chan->mmr_base) {
ret = -ENOMEM;
goto err_free_iop_chan;