[PATCH 19/24] selftests: media_tests: return Kselftest Skip code for skipped tests

[Shuah Khan (Samsung OSG)]

When media_tests test is skipped because of unmet dependencies and/or
unsupported configuration, it exits with error which is treated as a
fail by the Kselftest framework. This leads to false negative 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.

Change it to use ksft_exit_skip() when the test is skipped.

Signed-off-by: Shuah Khan (Samsung OSG) <sh...@kernel.org>
---
 tools/testing/selftests/media_tests/Makefile            | 3 ++-
 tools/testing/selftests/media_tests/media_device_open.c | 8 ++++----
 tools/testing/selftests/media_tests/media_device_test.c | 8 ++++----
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/tools/testing/selftests/media_tests/Makefile 
b/tools/testing/selftests/media_tests/Makefile
index c82cec2497de..60826d7d37d4 100644
--- a/tools/testing/selftests/media_tests/Makefile
+++ b/tools/testing/selftests/media_tests/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
+#
+CFLAGS += -I../ -I../../../../usr/include/
 TEST_GEN_PROGS := media_device_test media_device_open video_device_test
-all: $(TEST_GEN_PROGS)
 
 include ../lib.mk
diff --git a/tools/testing/selftests/media_tests/media_device_open.c 
b/tools/testing/selftests/media_tests/media_device_open.c
index a5ce5434bafd..93183a37b133 100644
--- a/tools/testing/selftests/media_tests/media_device_open.c
+++ b/tools/testing/selftests/media_tests/media_device_open.c
@@ -34,6 +34,8 @@
 #include <sys/stat.h>
 #include <linux/media.h>
 
+#include "../kselftest.h"
+
 int main(int argc, char **argv)
 {
        int opt;
@@ -61,10 +63,8 @@ int main(int argc, char **argv)
                }
        }
 
-       if (getuid() != 0) {
-               printf("Please run the test as root - Exiting.\n");
-               exit(-1);
-       }
+       if (getuid() != 0)
+               ksft_exit_skip("Please run the test as root - Exiting.\n");
 
        /* Open Media device and keep it open */
        fd = open(media_device, O_RDWR);
diff --git a/tools/testing/selftests/media_tests/media_device_test.c 
b/tools/testing/selftests/media_tests/media_device_test.c
index 421a367e4bb3..a4c6ad18cb5c 100644
--- a/tools/testing/selftests/media_tests/media_device_test.c
+++ b/tools/testing/selftests/media_tests/media_device_test.c
@@ -39,6 +39,8 @@
 #include <time.h>
 #include <linux/media.h>
 
+#include "../kselftest.h"
+
 int main(int argc, char **argv)
 {
        int opt;
@@ -66,10 +68,8 @@ int main(int argc, char **argv)
                }
        }
 
-       if (getuid() != 0) {
-               printf("Please run the test as root - Exiting.\n");
-               exit(-1);
-       }
+       if (getuid() != 0)
+               ksft_exit_skip("Please run the test as root - Exiting.\n");
 
        /* Generate random number of interations */
        srand((unsigned int) time(NULL));
-- 
2.14.1