trace-cmd/split: Do not allow zero or negative units

On trace-cmd split, do not allow zero or negative units.

Reported-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/trace-split.c b/trace-split.c
index 71ba8c1..c569524 100644
--- a/trace-split.c
+++ b/trace-split.c
@@ -438,6 +438,8 @@ void trace_split (int argc, char **argv)
                         if (split_type != SPLIT_NONE)
                                 die("Only one type of split is allowed");
                         count = atoi(optarg);
+                        if (count <= 0)
+                                die("Units must be greater than 0");
                         split_type = type;
                         break;
                 case 'r':