latencytop: fix memory leak on latency proc file
At lstats_open(), calling get_proc_task() gets task struct, but it never put. put_task_struct() should be called when releasing. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
ae0027869d
commit
d6643d12cb
|
@ -360,6 +360,15 @@ static int lstats_open(struct inode *inode, struct file *file)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static int lstats_release(struct inode *inode, struct file *file)
|
||||
{
|
||||
struct seq_file *m = file->private_data;
|
||||
struct task_struct *task = m->private;
|
||||
|
||||
put_task_struct(task);
|
||||
return single_release(inode, file);
|
||||
}
|
||||
|
||||
static ssize_t lstats_write(struct file *file, const char __user *buf,
|
||||
size_t count, loff_t *offs)
|
||||
{
|
||||
|
@ -378,7 +387,7 @@ static const struct file_operations proc_lstats_operations = {
|
|||
.read = seq_read,
|
||||
.write = lstats_write,
|
||||
.llseek = seq_lseek,
|
||||
.release = single_release,
|
||||
.release = lstats_release,
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
Loading…
Reference in a new issue