trusty: Fix up error messages

Bug: 171750250
Test: m
Change-Id: I41cde13a891da36c85df6a451b2d051c18365797

1 files changed, 2 insertions, 2 deletions

diff --git a/trusty/coverage/coverage.cpp b/trusty/coverage/coverage.cpp
index 5eccdc503..9613d0fb5 100644
--- a/trusty/coverage/coverage.cpp
+++ b/trusty/coverage/coverage.cpp
@@ -130,7 +130,7 @@ Result<void> CoverageRecord::Open() {
     req.open_args.uuid = uuid_;
     auto ret = Rpc(&req, -1, &resp);
     if (!ret.ok()) {
-        return Error() << "failed to open coverage client: ";
+        return Error() << "failed to open coverage client: " << ret.error();
     }
     record_len_ = resp.open_args.record_len;
     shm_len_ = RoundPageUp(record_len_);
@@ -153,7 +153,7 @@ Result<void> CoverageRecord::Open() {
     req.share_record_args.shm_len = shm_len_;
     ret = Rpc(&req, dma_buf, &resp);
     if (!ret.ok()) {
-        return Error() << "failed to send shared memory: ";
+        return Error() << "failed to send shared memory: " << ret.error();
     }
 
     shm_ = shm;