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@kernel.org>

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 (executable)
--- 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