[PATCH 6/8] test: Check dtrace return status

[eugene.loh@oracle.com]

From: Eugene Loh <eugene.loh@oracle.com>

This test was spuriously passing.  DTrace failed to run -- many error
messages in the log file indicated as much -- and yet the test passed.

Check the dtrace return status.  Due to recent USDT changes, the test
now passes (properly).

Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
---
 test/unittest/usdt/tst.forker.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/test/unittest/usdt/tst.forker.sh b/test/unittest/usdt/tst.forker.sh
index 018a6572..92513eb5 100755
--- a/test/unittest/usdt/tst.forker.sh
+++ b/test/unittest/usdt/tst.forker.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 #
 # Oracle Linux DTrace.
-# Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2007, 2024, Oracle and/or its affiliates. All rights reserved.
 # Licensed under the Universal Permissive License v 1.0 as shown at
 # http://oss.oracle.com/licenses/upl.
 #
@@ -32,6 +32,10 @@ while kill -0 $id >/dev/null 2>&1; do
 			exit(0);
 		}
 	EOF
+	if [ $? -ne 0 ]; then
+		echo ERROR: DTrace failed to run
+		exit 1
+	fi
 done
 
 exit 0
-- 
2.18.4