Function report |
Source Code:kernel\fail_function.c |
Create Date:2022-07-28 11:36:49 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:fei_write
Proto:static ssize_t fei_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
Type:ssize_t
Parameter:
Type | Parameter | Name |
---|---|---|
struct file * | file | |
const char __user * | buffer | |
size_t | count | |
loff_t * | ppos |
248 | If count > KSYM_NAME_LEN Then count = KSYM_NAME_LEN |
250 | buf = Allocation memory |
254 | If copy_from_user(buf, buffer, count) Then |
261 | mutex_lock( & fei_lock) |
264 | If sym[0] == '\0' Then |
270 | If sym[0] == '!' Then |
282 | If Not addr Then |
286 | If Not within_error_injection_list(addr) Then |
290 | If fei_attr_lookup(sym) Then |
294 | attr = fei_attr_new(sym, addr) |
295 | If Not attr Then |
300 | ret = register_kprobe( & kp) |
301 | If Not ret Then fei_debugfs_add_attr(attr) |
303 | If ret < 0 Then fei_attr_remove(attr) |
305 | Else |
309 | out : |
312 | Return ret |
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