[gnome-shell] recorder: Don't crash on pipeline errors

[Florian MÃllner <fmuellner src gnome org>]

commit f17fc43d6e6ca837dee580b5a468cf889648c6f1
Author: Florian MÃllner <fmuellner gnome org>
Date:   Thu Jul 5 00:08:28 2012 +0200

    recorder: Don't crash on pipeline errors
    
    In case of error, the recorder pipeline is reset to NULL, so don't
    access current_pipeline->src in that case.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=679445

 src/shell-recorder.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/shell-recorder.c b/src/shell-recorder.c
index 120ca0f..829ff32 100644
--- a/src/shell-recorder.c
+++ b/src/shell-recorder.c
@@ -526,6 +526,8 @@ recorder_record_frame (ShellRecorder *recorder)
   guint size;
   GstClockTime now;
 
+  g_return_if_fail (recorder->current_pipeline != NULL);
+
   /* If we get into the red zone, stop buffering new frames; 13/16 is
   * a bit more than the 3/4 threshold for a red indicator to keep the
   * indicator from flashing between red and yellow. */