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Message-Id: <20221011145233.1624013-26-sashal@kernel.org>
Date:   Tue, 11 Oct 2022 10:52:33 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Zhao Gongyi <zhaogongyi@...wei.com>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>, shuah@...nel.org,
        linux-kselftest@...r.kernel.org
Subject: [PATCH AUTOSEL 5.15 26/26] selftests/cpu-hotplug: Use return instead of exit

From: Zhao Gongyi <zhaogongyi@...wei.com>

[ Upstream commit 972cf4ce51ef5532d56822af17defb148aac0ccb ]

Some cpus will be left in offline state when online
function exits in some error conditions. Use return
instead of exit to fix it.

Signed-off-by: Zhao Gongyi <zhaogongyi@...wei.com>
Signed-off-by: Shuah Khan <skhan@...uxfoundation.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 .../selftests/cpu-hotplug/cpu-on-off-test.sh        | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
index 0d26b5e3f966..940b68c940bb 100755
--- a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
+++ b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
@@ -4,6 +4,7 @@
 SYSFS=
 # Kselftest framework requirement - SKIP code is 4.
 ksft_skip=4
+retval=0
 
 prerequisite()
 {
@@ -102,10 +103,10 @@ online_cpu_expect_success()
 
 	if ! online_cpu $cpu; then
 		echo $FUNCNAME $cpu: unexpected fail >&2
-		exit 1
+		retval=1
 	elif ! cpu_is_online $cpu; then
 		echo $FUNCNAME $cpu: unexpected offline >&2
-		exit 1
+		retval=1
 	fi
 }
 
@@ -128,10 +129,10 @@ offline_cpu_expect_success()
 
 	if ! offline_cpu $cpu; then
 		echo $FUNCNAME $cpu: unexpected fail >&2
-		exit 1
+		retval=1
 	elif ! cpu_is_offline $cpu; then
 		echo $FUNCNAME $cpu: unexpected offline >&2
-		exit 1
+		retval=1
 	fi
 }
 
@@ -201,7 +202,7 @@ if [ $allcpus -eq 0 ]; then
 		offline_cpu_expect_success $present_max
 		online_cpu $present_max
 	fi
-	exit 0
+	exit $retval
 else
 	echo "Full scope test: all hotplug cpus"
 	echo -e "\t online all offline cpus"
@@ -291,3 +292,5 @@ done
 
 echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
 /sbin/modprobe -q -r cpu-notifier-error-inject
+
+exit $retval
-- 
2.35.1

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