[PATCH v2] selftests/breakpoints:Add return value in main function

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Main function return value is int type, so add return
value in the end that this problem was discovered by reading the code

Signed-off-by: Zhu Jun <zhujun2@xxxxxxxxxxxxxxxxxxxx>
---
Changes in v2:
 - modify commit info  

 tools/testing/selftests/breakpoints/step_after_suspend_test.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/breakpoints/step_after_suspend_test.c b/tools/testing/selftests/breakpoints/step_after_suspend_test.c
index dfec31fb9b30..b473131fce3e 100644
--- a/tools/testing/selftests/breakpoints/step_after_suspend_test.c
+++ b/tools/testing/selftests/breakpoints/step_after_suspend_test.c
@@ -166,7 +166,7 @@ int main(int argc, char **argv)
 	bool succeeded = true;
 	unsigned int tests = 0;
 	cpu_set_t available_cpus;
-	int err;
+	int err = 0;
 	int cpu;
 
 	ksft_print_header();
@@ -222,4 +222,6 @@ int main(int argc, char **argv)
 		ksft_exit_pass();
 	else
 		ksft_exit_fail();
+
+	return err;
 }
-- 
2.17.1







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