1 files changed, 12 insertions, 14 deletions

diff --git a/src/xfaces.c b/src/xfaces.c
index 5137ab7e721..b8b946bea47 100644
--- a/src/xfaces.c
+++ b/src/xfaces.c
@@ -3435,8 +3435,8 @@ set_lface_from_font_name (f, lface, fontname, force_p, may_fail_p)
    call into lisp.  */
 
 Lisp_Object
-merge_face_heights (from, to, invalid, gcpro)
-     Lisp_Object from, to, invalid, gcpro;
+merge_face_heights (from, to, invalid)
+     Lisp_Object from, to, invalid;
 {
   Lisp_Object result = invalid;
 
@@ -3461,16 +3461,11 @@ merge_face_heights (from, to, invalid, gcpro)
       /* Call function with current height as argument.
          From is the new height.  */
       Lisp_Object args[2];
-      struct gcpro gcpro1;
-
-      GCPRO1 (gcpro);
 
       args[0] = from;
       args[1] = to;
       result = safe_call (2, args);
 
-      UNGCPRO;
-
       /* Ensure that if TO was absolute, so is the result.  */
       if (INTEGERP (to) && !INTEGERP (result))
         result = invalid;
@@ -3523,8 +3518,7 @@ merge_face_vectors (f, from, to, named_merge_points)
     if (!UNSPECIFIEDP (from[i]))
       {
         if (i == LFACE_HEIGHT_INDEX && !INTEGERP (from[i]))
-          to[i] = merge_face_heights (from[i], to[i], to[i],
-                                      named_merge_points);
+          to[i] = merge_face_heights (from[i], to[i], to[i]);
         else
           to[i] = from[i];
       }
@@ -3551,11 +3545,16 @@ merge_named_face (f, face_name, to, named_merge_points)
   if (push_named_merge_point (&named_merge_point,
                               face_name, &named_merge_points))
     {
+      struct gcpro gcpro1;
       Lisp_Object from[LFACE_VECTOR_SIZE];
       int ok = get_lface_attributes (f, face_name, from, 0);
 
       if (ok)
-        merge_face_vectors (f, from, to, named_merge_points);
+        {
+          GCPRO1 (named_merge_point.face_name);
+          merge_face_vectors (f, from, to, named_merge_points);
+          UNGCPRO;
+        }
 
       return ok;
     }
@@ -3646,8 +3645,7 @@ merge_face_ref (f, face_ref, to, err_msgs, named_merge_points)
               else if (EQ (keyword, QCheight))
                 {
                   Lisp_Object new_height =
-                    merge_face_heights (value, to[LFACE_HEIGHT_INDEX],
-                                        Qnil, Qnil);
+                    merge_face_heights (value, to[LFACE_HEIGHT_INDEX], Qnil);
 
                   if (! NILP (new_height))
                     to[LFACE_HEIGHT_INDEX] = new_height;
@@ -4034,7 +4032,7 @@ FRAME 0 means change the face on all frames, and change the default
                   /* The default face must have an absolute size,
                      otherwise, we do a test merge with a random
                      height to see if VALUE's ok. */
-                  : merge_face_heights (value, make_number (10), Qnil, Qnil));
+                  : merge_face_heights (value, make_number (10), Qnil));
 
           if (!INTEGERP (test) || XINT (test) <= 0)
             signal_error ("Invalid face height", value);
@@ -4740,7 +4738,7 @@ the result will be absolute, otherwise it will be relative.  */)
   if (EQ (value1, Qunspecified))
     return value2;
   else if (EQ (attribute, QCheight))
-    return merge_face_heights (value1, value2, value1, Qnil);
+    return merge_face_heights (value1, value2, value1);
   else
     return value1;
 }