Fix gratuitous argument passing error in image-dired (Bug#7817).

* lisp/image-dired.el (image-dired-mouse-display-image): No-op if
no file is found.

2 files changed, 12 insertions, 9 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index c35e3db23e6..d71c51f5bde 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,8 @@
 2011-01-28  Chong Yidong  <cyd@stupidchicken.com>
 
+        * image-dired.el (image-dired-mouse-display-image): No-op if no
+        file is found (Bug#7817).
+
         * mouse.el (mouse-menu-non-singleton): Doc fix (Bug#7801).
 
 2011-01-28  Kenichi Handa  <handa@m17n.org>
diff --git a/lisp/image-dired.el b/lisp/image-dired.el
index 41fee0b0df2..489195837fc 100644
--- a/lisp/image-dired.el
+++ b/lisp/image-dired.el
@@ -2187,15 +2187,15 @@ matching tag will be marked in the dired buffer."
 Track this in associated dired buffer if `image-dired-track-movement' is
 non-nil."
   (interactive "e")
-  (let (file)
-    (mouse-set-point event)
-    (goto-char (posn-point (event-end event)))
-    (setq file (image-dired-original-file-name))
-    (if image-dired-track-movement
-        (image-dired-track-original-file))
-    (image-dired-create-display-image-buffer)
-    (display-buffer image-dired-display-image-buffer)
-    (image-dired-display-image file)))
+  (mouse-set-point event)
+  (goto-char (posn-point (event-end event)))
+  (let ((file (image-dired-original-file-name)))
+    (when file
+      (if image-dired-track-movement
+          (image-dired-track-original-file))
+      (image-dired-create-display-image-buffer)
+      (display-buffer image-dired-display-image-buffer)
+      (image-dired-display-image file))))
 
 (defun image-dired-mouse-select-thumbnail (event)
   "Use mouse EVENT to select thumbnail image.