From da419557611c85ceb2aafdd491f9ff9463b6db63 Mon Sep 17 00:00:00 2001
From: Jue <me@jue.yt>
Date: Wed, 14 Dec 2022 17:15:12 +0100
Subject: [PATCH] shell/gnrc_icmpv6_echo: acquire ZTIMER_USEC clock for time
 measurement

---
 sys/shell/cmds/gnrc_icmpv6_echo.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/shell/cmds/gnrc_icmpv6_echo.c b/sys/shell/cmds/gnrc_icmpv6_echo.c
index 65d3cdb33a..581d43b3ca 100644
--- a/sys/shell/cmds/gnrc_icmpv6_echo.c
+++ b/sys/shell/cmds/gnrc_icmpv6_echo.c
@@ -99,8 +99,10 @@ static int _gnrc_icmpv6_ping(int argc, char **argv)
     };
     int res;
 
+    ztimer_acquire(ZTIMER_USEC);
+
     if ((res = _configure(argc, argv, &data)) != 0) {
-        return res;
+        goto ret;
     }
     gnrc_netreg_register(GNRC_NETTYPE_ICMPV6, &data.netreg);
     _pinger(&data);
@@ -143,6 +145,8 @@ finish:
             msg_send(&msg, thread_getpid());
         }
     }
+ret:
+    ztimer_release(ZTIMER_USEC);
     return res;
 }