(gud-basic-call): Detect error earlier.

diff --git a/lisp/gud.el b/lisp/gud.el
index 8decc5e54bc61d66d3e427edd54ca9a3e4b14ab4..917a0f9ac9f70ebf63f29d02ae98c70a88c3460c 100644 (file)
--- a/lisp/gud.el
+++ b/lisp/gud.el
@@ -1213,7 +1213,7 @@ Obeying it means displaying in another window the specified file and line."
   (gud-set-buffer)
   (let ((command (concat command "\n"))
        (proc (get-buffer-process gud-comint-buffer)))
-
+    (or proc (error "Current buffer has no process"))
     ;; Arrange for the current prompt to get deleted.
     (save-excursion
       (set-buffer gud-comint-buffer)