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net: atm: fix update of position index in lec_seq_next

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The position index in leq_seq_next is not updated when the next
entry is fetched an no more entries are available. This causes
seq_file to report the following error:

"seq_file: buggy .next function lec_seq_next [lec] did not update
 position index"

Fix this by always updating the position index.

[ Note: this is an ancient 2002 bug, the sha is from the
  tglx/history repo ]

Fixes 4aea2cbff417 ("[ATM]: Move lan seq_file ops to lec.c [1/3]")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201027114925.21843-1-colin.king@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Colin Ian King 2020-10-27 11:49:25 +00:00 committed by Jakub Kicinski
parent 2b94f5266c
commit 2f71e00619
1 changed files with 2 additions and 3 deletions
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5
net/atm/lec.c
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@ -954,9 +954,8 @@ static void *lec_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct lec_state *state = seq->private;
v = lec_get_idx(state, 1);
*pos += !!PTR_ERR(v);
return v;
++*pos;
return lec_get_idx(state, 1);
}
static int lec_seq_show(struct seq_file *seq, void *v)