[nautilus-sound-converter] Fix crash due to user deleting the cdlossy profile (#640931)

[Brian Pepple <bpepple src gnome org>]

commit 3d5d06954a098f8ab792215ce490186fd2ca2594
Author: Brian Pepple <bpepple fedoraproject org>
Date:   Sun Jan 30 17:33:22 2011 -0500

    Fix crash due to user deleting the cdlossy profile (#640931)

 src/nsc-converter.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)
---
diff --git a/src/nsc-converter.c b/src/nsc-converter.c
index 3831a4c..6b85852 100644
--- a/src/nsc-converter.c
+++ b/src/nsc-converter.c
@@ -686,9 +686,11 @@ create_main_dialog (NscConverter *converter)
 	priv->profile_chooser = gm_audio_profile_choose_new ();
 
 	/* Set which profile is active */
-	profile_id = gm_audio_profile_get_id (priv->profile);
-	gm_audio_profile_choose_set_active (priv->profile_chooser,
-					    profile_id);
+	if (priv->profile) {
+		profile_id = gm_audio_profile_get_id (priv->profile);
+		gm_audio_profile_choose_set_active (priv->profile_chooser,
+						    profile_id);
+	}
 
 	/* Create edit profile button */
 	edit = gtk_button_new_with_mnemonic (dgettext (GETTEXT_PACKAGE, "Edit _Profiles..."));