more coverity fixes

lib/test/common/logger_test.cc

@@ -82,6 +82,7 @@ bool read(std::string filename) {
         written[thread][msg] = true;
       } else {
         perror("Wrong thread and/or msg");
+        fclose(f);
         return false;
       }
     }

srsenb/test/upper/ip_test.cc

@@ -591,7 +591,7 @@ int main(int argc, char *argv[])
 int setup_if_addr(char *ip_addr)
 {
   char *dev = (char*) "tun_srsenb";
-  int sock = 0;
+  int sock;
 
   // Construct the TUN device
   int tun_fd = open("/dev/net/tun", O_RDWR);
@@ -642,10 +642,12 @@ int setup_if_addr(char *ip_addr)
     perror("ioctl");
     goto clean_exit;
   }
+  shutdown(sock, SHUT_RDWR);
 
   return(tun_fd);
 
 clean_exit:
+  shutdown(sock, SHUT_RDWR);
   close(tun_fd);
   return SRSLTE_ERROR;
 }