Tools: hv: check return value of system in hv_kvp_daemon

hv_kvp_daemon.c: In function 'main':
hv_kvp_daemon.c:1441:8: warning: ignoring return value of 'daemon', declared with attribute warn_unused_result [-Wunused-result]

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index ba075e514422..b96eccce48e3 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -1353,7 +1353,11 @@ setval_done:
          */
 
         snprintf(cmd, sizeof(cmd), "%s %s", "hv_set_ifconfig", if_file);
-        system(cmd);
+        if (system(cmd)) {
+                syslog(LOG_ERR, "Failed to execute cmd '%s'; error: %d %s",
+                                cmd, errno, strerror(errno));
+                return HV_E_FAIL;
+        }
         return 0;
 
 setval_error: