event_trigger_regex_open

Name:event_trigger_regex_open

Proto:static int event_trigger_regex_open(struct inode *inode, struct file *file)

Type:int

Parameter:

Type	Parameter	Name
struct inode *	inode
struct file *	file

180

ret = security_locked_down(LOCKDOWN_TRACEFS)

181

If ret Then Return ret

184

mutex_lock( & event_mutex)

186

If Value for the false possibility is greater at compile time(!event_file_data(file)) Then

187

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.

188

Return -ENODEV

191

If f_mode & le is open for writing && f_flags & O_TRUNC Then

196

event_file = event_file_data(file)

199

If unreg_all Then unreg_all(event_file)

204

If f_mode & le is open for reading Then

205

ret = seq_open(file, & event_triggers_seq_ops)

206

If Not ret Then

207

m = needed for tty driver, and maybe others

208

212

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.

214

Return ret

**Caller**
Name	Describe
event_trigger_open

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