tracing: eval_map_next() should always 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.

Link: http://lkml.kernel.org/r/7ad85b22-1866-977c-db17-88ac438bc764@virtuozzo.com

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
[ This is not a bug fix, it just makes it "technically correct"
  which is why I applied it. NULL is only returned on an anomaly
  which triggers a WARN_ON ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

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Vasily Averin 2020-01-24 10:03:01 +03:00 • committed by Steven Rostedt (VMware)

parent e4075e8bdf

commit 039958a5f7

1 changed files with 1 additions and 3 deletions

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kernel/trace/trace.c

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