2)kmalloc()和kzalloc()申请的内存必须调用kfree()释放。 三、devm_kfree 文件:drivers/base/devres.c,定义如下: /** * devm_kfree - Resource-managed kfree * @dev: Device this memory belongs to * @p: Memory to free * * Free memory allocated with devm_kmalloc().*/voiddevm_kfree(structde...
2)kmalloc()和kzalloc()申请的内存必须调用kfree()释放。 三、devm_kfree 文件:drivers/base/devres.c,定义如下: /** * devm_kfree - Resource-managed kfree * @dev: Device this memory belongs to * @p: Memory to free * * Free memory allocated with devm_kmalloc(). */voiddevm_kfree(struct...
void devm_kfree(struct device *dev, void *p); 1. 2. In a pattern we'll see repeated below, the new functions are similar tokzalloc() and kfree() except for the new names and theaddition of the dev Note that there is no managed equivalent to kalloc(); if driverwriters cannot be ...
void devm_kfree(struct device *dev, void *p); In a pattern we'll see repeated below, the new functions are similar tokzalloc()andkfree()except for the new names and theaddition of thedevargument. That argument is necessary for theresource management code to know when the memory can be ...
Linux kernel Memory Allocation Functions: devm_kmalloc / devm_kzalloc / devm_kfreeKernel version: 5.101.void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp);drivers/base.devres.c 813 /** 814 * devm_kmalloc - Resource-managed kmalloc 815 * @dev: Device to allocate memory for...
函数名称:devm_kzalloc 函数原型:static inline void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp) 返回类型:void 参数: 类型参数名称 struct device * dev size_t size gfp_t gfp 935 返回:managed devm_k.alloc/kfree for device drivers 调用...
free_gname: kfree(gname); free_map: kfree(map); return -ENOMEM; } 具体分析TODO (5)samsung_dt_free_map 该函数的代码如下: static void samsung_dt_free_map(struct pinctrl_dev *pctldev, struct pinctrl_map *map, unsigned num_maps) ...
问在linux驱动程序编程中，devm_kzalloc()和kzalloc()有什么区别EN双等号(==) 符号检查松散相等，而三...
kfree(chip); spi_set_ctldata(spi, NULL); }/* Restart the controller, disable all interrupts, clean rx fifo */ static void spi_hw_init(struct dw_spi *dws) { @@ -661,6 +668,7 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)...
- kfree(r8a66597); return 0; } @@ -1892,12 +1891,9 @@ static int __init r8a66597_probe(struct platform_device *pdev) } /* initialize ucd */ - r8a66597 = kzalloc(sizeof(struct r8a66597), GFP_KERNEL); - if (r8a66597 == NULL) { ...