zcip: do not query current time if we won't use the result

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/networking/zcip.c b/networking/zcip.c
index d15c67d55..f0e734283 100644
--- a/networking/zcip.c
+++ b/networking/zcip.c
@@ -361,8 +361,10 @@ int zcip_main(int argc UNUSED_PARAM, char **argv)
                         // make the kernel filter out all packets except
                         // ones we'd care about.
                 }
-                // Set deadline_us to the point in time when we timeout
-                deadline_us = MONOTONIC_US() + timeout_ms * 1000;
+                if (timeout_ms >= 0) {
+                        // Set deadline_us to the point in time when we timeout
+                        deadline_us = MONOTONIC_US() + timeout_ms * 1000;
+                }
 
                 VDBG("...wait %d %s nsent=%u\n",
                                 timeout_ms, argv_intf, nsent);