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| author | Tim Blechmann <tim@klingt.org> | 2009-10-17 18:08:29 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-10-19 09:52:39 +0200 |
| commit | dc79959aaf80e518741657a702fa2727c86c1189 (patch) | |
| tree | 39e7a00b90c972714657c74fd88d12759f36ea37 /tools/perf | |
| parent | 210f9cb2cf2effca690271085f4bd6a3ea286e6c (diff) | |
| download | blackbird-op-linux-dc79959aaf80e518741657a702fa2727c86c1189.tar.gz blackbird-op-linux-dc79959aaf80e518741657a702fa2727c86c1189.zip | |
perf top: Fix --delay_secs 0 division by zero
Add delay_secs sanity check to handle_keypress,
this fixes a division by zero crash.
Signed-off-by: Tim Blechmann <tim@klingt.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4AD9EBFD.106@klingt.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-top.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c index 37512e936235..a1b1d10912dc 100644 --- a/tools/perf/builtin-top.c +++ b/tools/perf/builtin-top.c @@ -686,6 +686,8 @@ static void handle_keypress(int c) switch (c) { case 'd': prompt_integer(&delay_secs, "Enter display delay"); + if (delay_secs < 1) + delay_secs = 1; break; case 'e': prompt_integer(&print_entries, "Enter display entries (lines)"); |
