[tip: core/rcu] torture: Make kvm.sh return failure upon build failure

[tip-bot2 for Paul E. McKenney]

The following commit has been merged into the core/rcu branch of tip:

Commit-ID:     23239fc075d60a942101227c42353b5ced804269
Gitweb:        https://git.kernel.org/tip/23239fc075d60a942101227c42353b5ced804269
Author:        Paul E. McKenney <paulmck@xxxxxxxxxx>
AuthorDate:    Mon, 23 Nov 2020 10:41:57 -08:00
Committer:     Paul E. McKenney <paulmck@xxxxxxxxxx>
CommitterDate: Mon, 04 Jan 2021 14:01:22 -08:00

torture: Make kvm.sh return failure upon build failure

The kvm.sh script uses kvm-find-errors.sh to evaluate whether or not
a build failed.  Unfortunately, kvm-find-errors.sh returns success if
there are no failed runs (including when there are no runs at all) even if
there are build failures.  This commit therefore makes kvm-find-errors.sh
return failure in response to build failures.

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
---
 tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh | 8 ++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh
index 6f50722..be26598 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh
@@ -39,6 +39,7 @@ done
 if test -n "$files"
 then
 	$editor $files
+	editorret=1
 else
 	echo No build errors.
 fi
@@ -62,5 +63,10 @@ then
 	exit 1
 else
 	echo No errors in console logs.
-	exit 0
+	if test -n "$editorret"
+	then
+		exit $editorret
+	else
+		exit 0
+	fi
 fi