rt_cpu_seq_next should increase position index

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 <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 87e979f2b74a5fd3b4f3b70250ffd6de4ef6212f..e356ea77922729f45711006926e519c45e552516 100644 (file)
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -271,6 +271,7 @@ static void *rt_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
                *pos = cpu+1;
                return &per_cpu(rt_cache_stat, cpu);
        }
+       (*pos)++;
        return NULL;
 
 }