Fix more warnings

code/game/g_items.c

@@ -368,10 +368,14 @@ void RespawnItem( gentity_t *ent ) {
 
 		choice = rand() % count;
 
-		for (count = 0, ent = master; count < choice; ent = ent->teamchain, count++)
+		for (count = 0, ent = master; ent && count < choice; ent = ent->teamchain, count++)
 			;
 	}
 
+	if (!ent) {
+		return;
+	}
+
 	ent->r.contents = CONTENTS_TRIGGER;
 	ent->s.eFlags &= ~EF_NODRAW;
 	ent->r.svFlags &= ~SVF_NOCLIENT;