selftests: android: ion: return Kselftest Skip code for skipped tests

When ion test is skipped because of unmet dependencies and/or unsupported
configuration, it returns 0 which is treated as a pass by the Kselftest
framework. This leads to false positive result even when the test could
not be run.

Change it to return kselftest skip code when a test gets skipped to
clearly report that the test could not be run.

Kselftest framework SKIP code is 4 and the framework prints appropriate
messages to indicate that the test is skipped.

Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Acked-by: Pintu Agarwal <pintu.ping@gmail.com>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>

diff --git a/tools/testing/selftests/android/ion/ion_test.sh b/tools/testing/selftests/android/ion/ion_test.sh
index a1aff50..69e676c 100755 (executable)
--- a/tools/testing/selftests/android/ion/ion_test.sh
+++ b/tools/testing/selftests/android/ion/ion_test.sh
@@ -4,6 +4,9 @@ heapsize=4096
 TCID="ion_test.sh"
 errcode=0
 
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
 run_test()
 {
        heaptype=$1
@@ -25,7 +28,7 @@ check_root()
        uid=$(id -u)
        if [ $uid -ne 0 ]; then
                echo $TCID: must be run as root >&2
-               exit 0
+               exit $ksft_skip
        fi
 }
 
@@ -35,7 +38,7 @@ check_device()
        if [ ! -e $DEVICE ]; then
                echo $TCID: No $DEVICE device found >&2
                echo $TCID: May be CONFIG_ION is not set >&2
-               exit 0
+               exit $ksft_skip
        fi
 }