[PATCH] perf tools: delay_secs safety

[Tim Blechmann <tim@klingt.org>]

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add delay_secs sanity check to handle_keypress, fixes a division by
zero crash.

Signed-off-by: Tim Blechmann <tim@klingt.org>
---
 tools/perf/builtin-top.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)


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diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 2d8806b..cc66286 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -663,6 +663,8 @@ 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)");


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