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-rw-r--r--fs/proc/base.c14
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index c1fdaec..7d795d2 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1380,7 +1380,8 @@ static ssize_t proc_fail_nth_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
struct task_struct *task;
- int err;
+ char numbuf[PROC_NUMBUF];
+ ssize_t len;
task = get_proc_task(file_inode(file));
if (!task)
@@ -1388,13 +1389,10 @@ static ssize_t proc_fail_nth_read(struct file *file, char __user *buf,
put_task_struct(task);
if (task != current)
return -EPERM;
- if (count < 1)
- return -EINVAL;
- err = put_user((char)(current->fail_nth ? 'N' : 'Y'), buf);
- if (err)
- return err;
- current->fail_nth = 0;
- return 1;
+ len = snprintf(numbuf, sizeof(numbuf), "%u\n", task->fail_nth);
+ len = simple_read_from_buffer(buf, count, ppos, numbuf, len);
+
+ return len;
}
static const struct file_operations proc_fail_nth_operations = {
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