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Subject[PATCH 11/29] marvell-ccic/mmp-driver.c: simplify use of devm_ioremap_resource
Date
From: 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/)

// <smpl>
@@
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);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>

---
drivers/media/platform/marvell-ccic/mmp-driver.c | 8 --------
1 file changed, 8 deletions(-)

diff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c
index f06daa4..b5a19af 100644
--- a/drivers/media/platform/marvell-ccic/mmp-driver.c
+++ b/drivers/media/platform/marvell-ccic/mmp-driver.c
@@ -396,10 +396,6 @@ static int mmpcam_probe(struct platform_device *pdev)
* Get our I/O memory.
*/
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- dev_err(&pdev->dev, "no iomem resource!\n");
- return -ENODEV;
- }
mcam->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(mcam->regs))
return PTR_ERR(mcam->regs);
@@ -409,10 +405,6 @@ static int mmpcam_probe(struct platform_device *pdev)
* should really be managed outside of this driver?
*/
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- if (res == NULL) {
- dev_err(&pdev->dev, "no power resource!\n");
- return -ENODEV;
- }
cam->power_regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(cam->power_regs))
return PTR_ERR(cam->power_regs);


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