[brasero: 1/2] Check pointer before strcmp() call

[Federico Mena Quintero <federico src gnome org>]

commit 1914ba3aede6cc33071ea7fe30e10d0037a450a3
Author: Geyslan <geyslan gmail com>
Date:   Sat Aug 11 11:54:56 2018 -0300

    Check pointer before strcmp() call
    
    Due an unchecked pointer, a strcmp() call was crashing with a malformed URI.
    
    Signed-off-by: Geyslan <geyslan gmail com>

 nautilus/nautilus-burn-extension.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/nautilus/nautilus-burn-extension.c b/nautilus/nautilus-burn-extension.c
index df93a02a..3be8e5fa 100644
--- a/nautilus/nautilus-burn-extension.c
+++ b/nautilus/nautilus-burn-extension.c
@@ -714,6 +714,8 @@ nautilus_disc_burn_get_background_items (NautilusMenuProvider *provider,
         items = NULL;
 
         scheme = nautilus_file_info_get_uri_scheme (current_folder);
+        if (!scheme)
+                return NULL;
 
         if (strcmp (scheme, "burn") == 0) {
                 NautilusMenuItem *item;