linux-kernel - [PATCH 3.10 156/250] ktest: Fix child exit code processing

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Date:   Thu,  8 Jun 2017 00:59:02 +0200
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux@...ck-us.net
Cc:     "Steven Rostedt (VMware)" <rostedt@...dmis.org>,
        Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 156/250] ktest: Fix child exit code processing

From: "Steven Rostedt (VMware)" <rostedt@...dmis.org>

commit 32677207dcc5e594254b7fb4fb2352b1755b1d5b upstream.

The child_exit errno needs to be shifted by 8 bits to compare against the
return values for the bisect variables.

Fixes: c5dacb88f0a64 ("ktest: Allow overriding bisect test results")
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Signed-off-by: Willy Tarreau <w@....eu>
---
 tools/testing/ktest/ktest.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
index 0d7fd8b..a0a8314 100755
--- a/tools/testing/ktest/ktest.pl
+++ b/tools/testing/ktest/ktest.pl
@@ -2375,7 +2375,7 @@ sub do_run_test {
     }
 
     waitpid $child_pid, 0;
-    $child_exit = $?;
+    $child_exit = $? >> 8;
 
     if (!$bug && $in_bisect) {
 	if (defined($bisect_ret_good)) {
-- 
2.8.0.rc2.1.gbe9624a