DV: check return of vlc_clone

modules/access/dv.c

@@ -206,17 +206,22 @@ static int Open( vlc_object_t *p_this )
     p_sys->p_ev = calloc( 1, sizeof( *p_sys->p_ev ) );
     if( !p_sys->p_ev )
     {
-        msg_Err( p_access, "failed to create event thread" );
+        msg_Err( p_access, "failed to create event thread struct" );
         Close( p_this );
-        return VLC_EGENERIC;
+        return VLC_ENOMEM;
     }
 
     p_sys->p_ev->p_frame = NULL;
     p_sys->p_ev->pp_last = &p_sys->p_ev->p_frame;
     p_sys->p_ev->p_access = p_access;
     vlc_mutex_init( &p_sys->p_ev->lock );
-    vlc_clone( &p_sys->p_ev->thread, Raw1394EventThread,
-               p_sys->p_ev, VLC_THREAD_PRIORITY_OUTPUT );
+    if( vlc_clone( &p_sys->p_ev->thread, Raw1394EventThread,
+               p_sys->p_ev, VLC_THREAD_PRIORITY_OUTPUT ) )
+    {
+        msg_Err( p_access, "failed to clone event thread" );
+        Close( p_this );
+        return VLC_EGENERIC;
+    }
 
     return VLC_SUCCESS;
 }