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authorColin Ian King <colin.king@canonical.com>2020-10-27 11:49:25 +0000
committerJakub Kicinski <kuba@kernel.org>2020-10-31 12:26:30 -0700
commit2f71e00619dcde3d8a98ba3e7f52e98282504b7d (patch)
tree1969f3b7597396243872a4d0cdc3d04b0fc735d6 /net/atm
parent2b94f5266c8452c01291f3b0370fcad28a357746 (diff)
downloadlinux-2f71e00619dcde3d8a98ba3e7f52e98282504b7d.tar.gz
net: atm: fix update of position index in lec_seq_next
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>
Diffstat (limited to 'net/atm')
-rw-r--r--net/atm/lec.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/atm/lec.c b/net/atm/lec.c
index dbabb65d8b67..7226c784dbe0 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -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)