dma: mmp: simplify use of devm_ioremap_resource
Author: Julia Lawall <Julia.Lawall@lip6.fr>
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
//
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
//
Signed-off-by: Julia Lawall
Signed-off-by: Vinod Koul
---
drivers/dma/mmp_pdma.c | 3 ---
drivers/dma/mmp_tdma.c | 3 ---
2 files changed, 6 deletions(-)
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index dba9fe9..5c4318c 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -843,9 +843,6 @@ static int mmp_pdma_probe(struct platform_device *op)
spin_lock_init(&pdev->phy_lock);
iores = platform_get_resource(op, IORESOURCE_MEM, 0);
- if (!iores)
- return -EINVAL;
-
pdev->base = devm_ioremap_resource(pdev->dev, iores);
if (IS_ERR(pdev->base))
return PTR_ERR(pdev->base);
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index a9345d0..38cb517 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -550,9 +550,6 @@ static int mmp_tdma_probe(struct platform_device *pdev)
}
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!iores)
- return -EINVAL;
-
tdev->base = devm_ioremap_resource(&pdev->dev, iores);
if (IS_ERR(tdev->base))
return PTR_ERR(tdev->base); |
---
drivers/dma/mmp_pdma.c | 3 ---
drivers/dma/mmp_tdma.c | 3 ---
2 files changed, 6 deletions(-)
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index dba9fe9..5c4318c 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -843,9 +843,6 @@ static int mmp_pdma_probe(struct platform_device *op)
spin_lock_init(&pdev->phy_lock);
iores = platform_get_resource(op, IORESOURCE_MEM, 0);
- if (!iores)
- return -EINVAL;
-
pdev->base = devm_ioremap_resource(pdev->dev, iores);
if (IS_ERR(pdev->base))
return PTR_ERR(pdev->base);
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index a9345d0..38cb517 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -550,9 +550,6 @@ static int mmp_tdma_probe(struct platform_device *pdev)
}
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!iores)
- return -EINVAL;
-
tdev->base = devm_ioremap_resource(&pdev->dev, iores);
if (IS_ERR(tdev->base))
return PTR_ERR(tdev->base);