linux-kernel - [PATCH tip/core/rcu 10/18] rcutorture: Make kvm-find-errors.sh abort on bad directory

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Message-Id: <20200215004125.16953-4-paulmck@kernel.org>
Date:   Fri, 14 Feb 2020 16:41:17 -0800
From:   paulmck@...nel.org
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: [PATCH tip/core/rcu 10/18] rcutorture: Make kvm-find-errors.sh abort on bad directory

From: "Paul E. McKenney" <paulmck@...nel.org>

Currently, kvm-find-errors.sh gives a usage prompt when given a bad
directory, but then soldiers on, giving a series of confusing error
messages.  This commit therefore prints an error message and exits when
given a bad directory, hopefully reducing confusion.

Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh
index 1871d00..6f50722 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh
@@ -20,7 +20,9 @@
 rundir="${1}"
 if test -z "$rundir" -o ! -d "$rundir"
 then
+	echo Directory "$rundir" not found.
 	echo Usage: $0 directory
+	exit 1
 fi
 editor=${EDITOR-vi}
 
-- 
2.9.5