From: Julia Lawall <julia.law...@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.law...@lip6.fr> --- drivers/char/hw_random/tx4939-rng.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/char/hw_random/tx4939-rng.c b/drivers/char/hw_random/tx4939-rng.c index 00593c8..09c5fbe 100644 --- a/drivers/char/hw_random/tx4939-rng.c +++ b/drivers/char/hw_random/tx4939-rng.c @@ -110,12 +110,10 @@ static int __init tx4939_rng_probe(struct platform_device *dev) struct resource *r; int i; - r = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!r) - return -EBUSY; rngdev = devm_kzalloc(&dev->dev, sizeof(*rngdev), GFP_KERNEL); if (!rngdev) return -ENOMEM; + r = platform_get_resource(dev, IORESOURCE_MEM, 0); rngdev->base = devm_ioremap_resource(&dev->dev, r); if (IS_ERR(rngdev->base)) return PTR_ERR(rngdev->base); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
