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-rwxr-xr-xexamples/var_service/dhcp_if_pinger/run2
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/var_service/dhcp_if_pinger/run b/examples/var_service/dhcp_if_pinger/run
index e0e87a16a..8aca90c1a 100755
--- a/examples/var_service/dhcp_if_pinger/run
+++ b/examples/var_service/dhcp_if_pinger/run
@@ -30,7 +30,7 @@ test x"$router" != x"" || exec env - sleep "$ping_time"
failcnt=0
while true; do
ping $ping_opts "$router" && exec env - sleep "$ping_time"
- : $((failcnt++))
+ failcnt=$((failcnt+1))
msg "Failed to ping $router, fail count:$failcnt"
test $failcnt -ge $max_fail && break
env - sleep "$retry_time"