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help_next should increase position index

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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: Mike Marshall <hubcap@omnibond.com>
This commit is contained in:
Vasily Averin 2020-01-24 09:10:47 +03:00 committed by Mike Marshall
parent d5226fa6db
commit 9f198a2ac5
1 changed files with 1 additions and 0 deletions
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fs/orangefs/orangefs-debugfs.c
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@ -273,6 +273,7 @@ static void *help_start(struct seq_file *m, loff_t *pos)
static void *help_next(struct seq_file *m, void *v, loff_t *pos) static void *help_next(struct seq_file *m, void *v, loff_t *pos)
{ {
(*pos)++;
gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_next: start\n"); gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_next: start\n");
return NULL; return NULL;