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MIPS: ath79: simplify platform_get_resource_byname/devm_ioremap_resource 

Remove unneeded error handling on the result of a call to
platform_get_resource_byname 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,e,e1;
expression ret != 0;
identifier l;
@@

  res = platform_get_resource_byname(...);
- if (res == NULL) { ... \(goto l;\|return ret;\) }
  e = devm_ioremap_resource(e1, res);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Cc: kernel-janitors@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5725/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Julia Lawall 2013-08-19 10:51:56 +02:00 committed by Ralf Baechle
parent dbee716974
commit c6e7274e7a
2 changed files with 0 additions and 12 deletions
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3
arch/mips/pci/pci-ar71xx.c
View File

@ -363,9 +363,6 @@ static int ar71xx_pci_probe(struct platform_device *pdev)
spin_lock_init(&apc->lock);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg_base");
if (!res)
return -EINVAL;
apc->cfg_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(apc->cfg_base))
return PTR_ERR(apc->cfg_base);

9
arch/mips/pci/pci-ar724x.c
View File

@ -362,25 +362,16 @@ static int ar724x_pci_probe(struct platform_device *pdev)
return -ENOMEM;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl_base");
if (!res)
return -EINVAL;
apc->ctrl_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(apc->ctrl_base))
return PTR_ERR(apc->ctrl_base);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg_base");
if (!res)
return -EINVAL;
apc->devcfg_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(apc->devcfg_base))
return PTR_ERR(apc->devcfg_base);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "crp_base");
if (!res)
return -EINVAL;
apc->crp_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(apc->crp_base))
return PTR_ERR(apc->crp_base);