Fix gce detection

1 files changed, 4 insertions, 2 deletions

diff --git a/src/core/security/google_default_credentials.c b/src/core/security/google_default_credentials.c
index f368819597..1701a67d02 100644
--- a/src/core/security/google_default_credentials.c
+++ b/src/core/security/google_default_credentials.c
@@ -84,6 +84,8 @@ static void on_compute_engine_detection_http_response(
   gpr_mu_unlock(GRPC_POLLSET_MU(&detector->pollset));
 }
 
+static void destroy_pollset(void *p) { grpc_pollset_destroy(p); }
+
 static int is_stack_running_on_compute_engine(void) {
   compute_engine_detector detector;
   grpc_httpcli_request request;
@@ -114,12 +116,12 @@ static int is_stack_running_on_compute_engine(void) {
   while (!detector.is_done) {
     grpc_pollset_worker worker;
     grpc_pollset_work(&detector.pollset, &worker,
-                      gpr_inf_future(GPR_CLOCK_REALTIME));
+                      gpr_inf_future(GPR_CLOCK_MONOTONIC));
   }
   gpr_mu_unlock(GRPC_POLLSET_MU(&detector.pollset));
 
   grpc_httpcli_context_destroy(&context);
-  grpc_pollset_destroy(&detector.pollset);
+  grpc_pollset_shutdown(&detector.pollset, destroy_pollset, &destroy_pollset);
 
   return detector.success;
 }