devm_request_resource

函数名称：devm_request_resource() - request and reserve an I/O or memory resource*@dev: device for which to request the resource*@root: root of the resource tree from which to request the resource*@new: descriptor of the resource to request

函数原型：int devm_request_resource(struct device *dev, struct resource *root, struct resource *new)

返回类型：int

参数：

类型	参数	名称
struct device *	dev
struct resource *	root
struct resource *	new

1384

ptr等于devres_alloc(Managed region resource, ptr的长度, GFP_KERNEL)

1385

如果非ptr则返回:负ENOMEM

1388

ptr等于new

1390

conflict等于quest_resource_conflict - request and reserve an I/O or memory resource*@root: root resource descriptor*@new: resource descriptor desired by caller* Returns 0 for success, conflict resource on error.

1391

如果conflict则

1392

dev_err(dev, "resource collision: %pR conflicts with %s %pR\n", new, name, conflict)

1394

devres_free(ptr)

1395

返回:负EBUSY

1398

devres_add(dev, ptr)

1399

返回:0

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告