(Ffont_spec): Check arguments.

2 files changed, 10 insertions, 1 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index e5516d26619..5e86ae6dd56 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2009-05-15  Kenichi Handa  <handa@m17n.org>
+
+        * font.c (Ffont_spec): Check arguments.
+
 2009-05-14  Chong Yidong  <cyd@stupidchicken.com>
 
         * xfaces.c (tty_supports_face_attributes_p): Recognize unspecified
diff --git a/src/font.c b/src/font.c
index cdff0d678e6..19bc70dd976 100644
--- a/src/font.c
+++ b/src/font.c
@@ -4007,7 +4007,12 @@ usage: (font-spec ARGS...)  */)
 
   for (i = 0; i < nargs; i += 2)
     {
-      Lisp_Object key = args[i], val = args[i + 1];
+      Lisp_Object key = args[i], val;
+
+      CHECK_SYMBOL (key);
+      if (i + 1 >= nargs)
+        error ("No value for key `%s'", SDATA (SYMBOL_NAME (key)));
+      val = args[i + 1];
 
       if (EQ (key, QCname))
         {