1、devm_kzalloc & devm_kfree 函数devm_kzalloc和kzalloc一样都是内核内存分配函数,但是devm_kzalloc是跟设备(装置)有关的,当设备(装置)被拆卸或者驱动(驱动...
devm_kzalloc() is resource-managed kzalloc(). The memory allocated with resource-managed functions is associated with the device. When the device is...
devm_kzalloc — Resource-managed kzalloc Synopsis void * devm_kzalloc ( struct device * dev, size_t size, gfp_t gfp); Arguments dev Device to alloca...
1)devm_kmalloc()和devm_kzalloc()是具有资源管理的kmalloc()和kzalloc()。与所属设备关联,在probe函数中使用。当设备驱动被卸载时,该内存被自动释放,也可使用...
函数devm_kzalloc() 和kzalloc()一样都是内核内存分配函数,但是devm_kzalloc()是跟设备(device)有关的,当设备(device)被detached或者驱动(driver)卸载(unloade...
_name[32]; unsigned char data; pr_info("regmap_device_register: name = %s\n", props->name); rd = devm_kzalloc(parent, sizeof(*rd), GFP_KERNEL); //向...
(dev);structdevice_node*node=dev->of_node;structresource*res;structdwc3*dwc;intret = -ENOMEM;void__iomem *regs;void*mem; mem =devm_kzalloc(dev,sizeof(*dwc) + DWC3...
我不清楚devm_kzalloc的参数。第763行http://lxr.free-electrons.com/source/drivers/base/devres.c?v=3.19#L774是"为其分配内存的设备"是什么意思?最终,我们只需要在大小为s...
1)devm_kmalloc()和devm_kzalloc()是具有资源管理的kmalloc()和kzalloc()。与所属设备关联,在probe函数中使用。当设备驱动被卸载时,该内存被自动释放,也可使用...
函数devm_kmalloc()和devm_kzalloc()对比kzalloc()一样都是内核内存分配函数,但是devm_kzalloc()是跟设备有关的,当设备驱动程序卸载时,内存会被自动释放。另外...
收录于：2022-11-30 00:40:30
