函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\fail_function.c Create Date:2022-07-27 12:40:29
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：fei_retval_get

函数原型：static int fei_retval_get(void *data, u64 *val)

返回类型：int

参数：

类型参数名称
void *data
u64 *val
139  attr等于data
140  err等于0
142  mutex_lock( & fei_lock)
144  如果非fei_attr_is_valid(attr)则err等于负ENOENT
146  否则val等于retval
148  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
150  返回:err