Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 22/29] host1x/{dev.c,drm/hdmi.c}: simplify use of devm_ioremap_resource | Date | Wed, 14 Aug 2013 11:11:26 +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/gpu/host1x/dev.c | 7 +------ drivers/gpu/host1x/drm/hdmi.c | 3 --- 2 files changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 28e28a2..e615edd 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -98,12 +98,6 @@ static int host1x_probe(struct platform_device *pdev) if (!id) return -EINVAL; - regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!regs) { - dev_err(&pdev->dev, "failed to get registers\n"); - return -ENXIO; - } - syncpt_irq = platform_get_irq(pdev, 0); if (syncpt_irq < 0) { dev_err(&pdev->dev, "failed to get IRQ\n"); @@ -120,6 +114,7 @@ static int host1x_probe(struct platform_device *pdev) /* set common host1x device data */ platform_set_drvdata(pdev, host); + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); host->regs = devm_ioremap_resource(&pdev->dev, regs); if (IS_ERR(host->regs)) return PTR_ERR(host->regs); diff --git a/drivers/gpu/host1x/drm/hdmi.c b/drivers/gpu/host1x/drm/hdmi.c index 01097da..9ffece6 100644 --- a/drivers/gpu/host1x/drm/hdmi.c +++ b/drivers/gpu/host1x/drm/hdmi.c @@ -1248,9 +1248,6 @@ static int tegra_hdmi_probe(struct platform_device *pdev) return err; regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!regs) - return -ENXIO; - hdmi->regs = devm_ioremap_resource(&pdev->dev, regs); if (IS_ERR(hdmi->regs)) return PTR_ERR(hdmi->regs);
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