(msdos-shells): Add defvar.

[gnu-emacs] / src / dispnew.c

diff --git a/src/dispnew.c b/src/dispnew.c
index 3f7d55b2477dba6b4307b5875424bb5c31b1e728..15190abfb7e164f1cb0541d7c06892881a6cbe1a 100644 (file)
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -5801,8 +5801,9 @@ buffer_posn_from_coords (w, x, y, pos, object, dx, dy, width, height)
     }
 #endif
 
-  row = MATRIX_ROW (w->current_matrix, it.vpos);
-  if (row->enabled_p)
+  if (it.vpos < w->current_matrix->nrows
+      && (row = MATRIX_ROW (w->current_matrix, it.vpos),
+         row->enabled_p))
     {
       if (it.hpos < row->used[TEXT_AREA])
        {