(sit_for): Signal error if TIMEOUT is not a number in case arg comes

directly from a Lisp variable.

1 files changed, 10 insertions, 6 deletions

diff --git a/src/dispnew.c b/src/dispnew.c
index 3519e2d64fe..018717e591f 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -6519,17 +6519,21 @@ sit_for (timeout, reading, do_display)
   if (do_display >= 2)
     redisplay_preserve_echo_area (2);
 
-  if (FLOATP (timeout))
+  if (INTEGERP (timeout))
     {
-      double seconds = XFLOAT_DATA (timeout);
+      sec = XFASTINT (timeout);
+      usec = 0;
+    }
+  else if (FLOATP (timeout))
+    {
+      double seconds;
+
+      seconds = XFLOAT_DATA (timeout);
       sec = (int) seconds;
       usec = (int) ((seconds - sec) * 1000000);
     }
   else
-    {
-      sec = XFASTINT (timeout);
-      usec = 0;
-    }
+    wrong_type_argument (Qnumberp, timeout);
 
   if (sec == 0 && usec == 0)
     return Qt;