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perf kvm stat live: Fix perf_evlist__add_pollfd error handling

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With the interface changed in following commit:

  2171a92568 tools lib fd array: Allow associating an integer cookie with each entry

the perf_evlist__add_pollfd function now returns the fd position in the
pollfd array.

We need to change this function's error check condition.

Signed-off-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Milian Wolff <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Jiri Olsa 2014-10-01 18:00:27 +02:00 • committed by Arnaldo Carvalho de Melo
commit fe636adda6
1 changed files with 2 additions and 2 deletions
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4
tools/perf/builtin-kvm.c
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@ -928,12 +928,12 @@ static int kvm_events_live_report(struct perf_kvm_stat *kvm)
goto out;
}
if (perf_evlist__add_pollfd(kvm->evlist, kvm->timerfd))
if (perf_evlist__add_pollfd(kvm->evlist, kvm->timerfd) < 0)
goto out;
nr_fds++;
if (perf_evlist__add_pollfd(kvm->evlist, fileno(stdin)))
if (perf_evlist__add_pollfd(kvm->evlist, fileno(stdin)) < 0)
goto out;
nr_stdin = nr_fds;