Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 3/6] mtd: fsmc_nand: simplify platform_get_resource_byname/devm_ioremap_resource | Date | Mon, 19 Aug 2013 10:51:53 +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_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>
--- drivers/mtd/nand/fsmc_nand.c | 12 ------------ 1 file changed, 12 deletions(-)
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 2a3b1b9..3dc1a75 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -958,9 +958,6 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) } res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_data"); - if (!res) - return -EINVAL; - host->data_va = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(host->data_va)) return PTR_ERR(host->data_va); @@ -968,25 +965,16 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) host->data_pa = (dma_addr_t)res->start; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_addr"); - if (!res) - return -EINVAL; - host->addr_va = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(host->addr_va)) return PTR_ERR(host->addr_va); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand_cmd"); - if (!res) - return -EINVAL; - host->cmd_va = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(host->cmd_va)) return PTR_ERR(host->cmd_va); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fsmc_regs"); - if (!res) - return -EINVAL; - host->regs_va = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(host->regs_va)) return PTR_ERR(host->regs_va);
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