From abbbae9e81fdb937b7fe7e8778579baed986fc6d Mon Sep 17 00:00:00 2001
From: Xavier Arteaga <xavier@softwareradiosystems.com>
Date: Thu, 14 Dec 2017 17:36:58 +0100
Subject: [PATCH] rf_uhd_imp tx forces zeros if null pointer buffer

---
 lib/src/phy/rf/rf_uhd_imp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/src/phy/rf/rf_uhd_imp.c b/lib/src/phy/rf/rf_uhd_imp.c
index c39bb2604..75482eaa1 100644
--- a/lib/src/phy/rf/rf_uhd_imp.c
+++ b/lib/src/phy/rf/rf_uhd_imp.c
@@ -790,7 +790,7 @@ int rf_uhd_send_timed_multi(void *h,
     int n = 0;
     cf_t *data_c[4];
     for (int i = 0; i < 4; i++) {
-      data_c[i] = data[i];
+      data_c[i] = data[i] ? data[i] : zero_mem;
     }
     do {
       size_t tx_samples = handler->tx_nof_samples;