help_next should increase position index
[ Upstream commit 9f198a2ac543eaaf47be275531ad5cbd50db3edf ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -273,6 +273,7 @@ static void *help_start(struct seq_file *m, loff_t *pos)
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static void *help_next(struct seq_file *m, void *v, loff_t *pos)
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{
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(*pos)++;
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gossip_debug(GOSSIP_DEBUGFS_DEBUG, "help_next: start\n");
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return NULL;
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