* minibuf.c (Fall_completions): Add more checks.

1 files changed, 4 insertions, 3 deletions

diff --git a/src/minibuf.c b/src/minibuf.c
index 54b0b1510ce..539a953f7ee 100644
--- a/src/minibuf.c
+++ b/src/minibuf.c
@@ -1589,9 +1589,8 @@ with a space are ignored unless STRING itself starts with a space.  */)
   tail = collection;
   if (type == 2)
     {
+      collection = check_obarray (collection);
       obsize = XVECTOR (collection)->size;
-      if (obsize == 0)
-        return Qnil;
       bucket = XVECTOR (collection)->contents[index];
     }
 
@@ -1612,8 +1611,10 @@ with a space are ignored unless STRING itself starts with a space.  */)
         }
       else if (type == 2)
         {
-          if (SYMBOLP (bucket))
+          if (!EQ (bucket, zero))
             {
+              if (!SYMBOLP (bucket))
+                error ("Bad data in guts of obarray");
               elt = bucket;
               eltstring = elt;
               if (XSYMBOL (bucket)->next)