devm_ioremap_resource often uses the result of a call to platform_get_resource as its last argument. devm_ioremap_resource does appropriate error handling on this argument, so error handling can be removed from the call site. To make the connection between the call to platform_get_resource and the call to devm_ioremap_resource more clear, the former is also moved down to be adjacent to the latter. In many cases, this patch changes the specific error value that is returned on failure of platform_get_resource. 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); - if (res == NULL) { ... \(goto l;\|return ret;\) } e = devm_ioremap_resource(e1, res); | - 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> -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
