From d6643d12cb0885d06a1491b16c1476abcbd53d40 Mon Sep 17 00:00:00 2001 From: Hiroshi Shimamoto Date: Thu, 14 Feb 2008 10:27:00 -0800 Subject: [PATCH] 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 Signed-off-by: Ingo Molnar --- fs/proc/base.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/fs/proc/base.c b/fs/proc/base.c index 989e3078d7a..85e06e49807 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -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 -- 2.20.1