From e41efe192b4433280fffd5ddafa0c1a5a741ec62 Mon Sep 17 00:00:00 2001
From: Philippe Teuwen <phil@teuwen.org>
Date: Sun, 4 Oct 2020 15:20:28 +0200
Subject: [PATCH] data scale: check param

---
 client/src/cmddata.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/client/src/cmddata.c b/client/src/cmddata.c
index 7e5025814..e183af77c 100644
--- a/client/src/cmddata.c
+++ b/client/src/cmddata.c
@@ -1916,9 +1916,9 @@ static int CmdScale(const char *Cmd) {
         arg_param_end
     };
     CLIExecWithReturn(ctx, Cmd, argtable, false);
-    CursorScaleFactor = arg_get_dbl_def(ctx, 1, 0);
-    if (CursorScaleFactor == 0) {
-        PrintAndLogEx(FAILED, "bad, can't have zero scale");
+    CursorScaleFactor = arg_get_dbl_def(ctx, 1, 1);
+    if (CursorScaleFactor <= 0) {
+        PrintAndLogEx(FAILED, "bad, can't have negative or zero scale");
         CursorScaleFactor = 1;
     }
     int len = 0;