From b71636ee37fa8f318156f58c80ed460e53351e37 Mon Sep 17 00:00:00 2001 From: Vasily Averin Date: Thu, 23 Jan 2020 10:11:13 +0300 Subject: [PATCH] l2t_seq_next should increase position index [ Upstream commit 66018a102f7756cf72db4d2704e1b93969d9d332 ] if seq_file .next fuction does not change position index, read after some lseek can generate unexpected output. https://bugzilla.kernel.org/show_bug.cgi?id=206283 Signed-off-by: Vasily Averin Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/chelsio/cxgb4/l2t.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.c b/drivers/net/ethernet/chelsio/cxgb4/l2t.c index 1a407d3..e6fe287 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/l2t.c +++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.c @@ -682,8 +682,7 @@ static void *l2t_seq_start(struct seq_file *seq, loff_t *pos) static void *l2t_seq_next(struct seq_file *seq, void *v, loff_t *pos) { v = l2t_get_idx(seq, *pos); - if (v) - ++*pos; + ++(*pos); return v; } -- 2.7.4