linuxdvb_frontend: fix possible string NULL dereference - coverity

diff --git a/src/input/mpegts/linuxdvb/linuxdvb_frontend.c b/src/input/mpegts/linuxdvb/linuxdvb_frontend.c
index f97dbcf9f8ec20929e510ac5b42ce7981200d6d5..ec5e8b18ef4f727727dd128a3075d822b702c539 100644 (file)
--- a/src/input/mpegts/linuxdvb/linuxdvb_frontend.c
+++ b/src/input/mpegts/linuxdvb/linuxdvb_frontend.c
@@ -209,8 +209,9 @@ linuxdvb_frontend_dvbs_class_satconf_set ( void *self, const void *str )
 {
   linuxdvb_frontend_t *lfe = self;
   htsmsg_t *conf;
+  str = str ?: "";
   if (lfe->lfe_satconf) {
-    if (!strcmp(str ?: "", lfe->lfe_satconf->ls_type))
+    if (!strcmp(str, lfe->lfe_satconf->ls_type))
       return 0;
     linuxdvb_satconf_delete(lfe->lfe_satconf, 1);
   }