Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 2/29] video: mxsfb: simplify use of devm_ioremap_resource | Date | Wed, 14 Aug 2013 11:11:06 +0200 |
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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.
Move the call to platform_get_resource adjacent to the call to devm_ioremap_resource to make the connection between them more clear.
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/video/mxsfb.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c index c2d3514..d250ed0 100644 --- a/drivers/video/mxsfb.c +++ b/drivers/video/mxsfb.c @@ -855,12 +855,6 @@ static int mxsfb_probe(struct platform_device *pdev) if (of_id) pdev->id_entry = of_id->data; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "Cannot get memory IO resource\n"); - return -ENODEV; - } - fb_info = framebuffer_alloc(sizeof(struct mxsfb_info), &pdev->dev); if (!fb_info) { dev_err(&pdev->dev, "Failed to allocate fbdev\n"); @@ -869,6 +863,7 @@ static int mxsfb_probe(struct platform_device *pdev) host = to_imxfb_host(fb_info); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); host->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(host->base)) { ret = PTR_ERR(host->base);
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