Fix crash bug in inputfile_queue_check_expired

diff --git a/xmit.c b/xmit.c
index ace7286296e9c3b4b34f6883b3325d7e47eb15e6..c4b1854717333b05249bf009e33387fe9b8d13de 100644 (file)
--- a/xmit.c
+++ b/xmit.c
@@ -184,6 +184,7 @@ void inputfile_queue_check_expired(InputFile *ipf) {
 
   for (;;) {
     Article *art= LIST_HEAD(ipf->queue);
+    if (!art) break;
     int expd= article_check_expired(art);
     if (!expd) break;
   }