[PATCH 3/6] bpf: task_group_seq_get_next: fix the skip_if_dup_files check

[Oleg Nesterov <oleg@redhat.com>]

Unless I am notally confused it is wrong. We are going to return or
skip next_task so we need to check next_task-files, not task->files.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 kernel/bpf/task_iter.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bpf/task_iter.c b/kernel/bpf/task_iter.c
index 1589ec3faded..2264870ae3fc 100644
--- a/kernel/bpf/task_iter.c
+++ b/kernel/bpf/task_iter.c
@@ -82,7 +82,7 @@ static struct task_struct *task_group_seq_get_next(struct bpf_iter_seq_task_comm
 
 	common->pid_visiting = *tid;
 
-	if (skip_if_dup_files && task->files == task->group_leader->files) {
+	if (skip_if_dup_files && next_task->files == next_task->group_leader->files) {
 		task = next_task;
 		goto retry;
 	}
-- 
2.25.1.362.g51ebf55