[PATCH bpf-next] selftests/bpf: fix RELEASE=1 compilation for sock_addr.c

[Andrii Nakryiko <andrii@xxxxxxxxxx>]

When building selftests with RELEASE=1 using GCC compiler, it complaints
about uninitialized err. Fix the problem.

Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
---
 tools/testing/selftests/bpf/prog_tests/sock_addr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/sock_addr.c b/tools/testing/selftests/bpf/prog_tests/sock_addr.c
index b880c564a204..a6ee7f8d4f79 100644
--- a/tools/testing/selftests/bpf/prog_tests/sock_addr.c
+++ b/tools/testing/selftests/bpf/prog_tests/sock_addr.c
@@ -2642,6 +2642,7 @@ void test_sock_addr(void)
 			break;
 		default:
 			ASSERT_TRUE(false, "Unknown sock addr test type");
+			err = -EINVAL;
 			break;
 		}
 
-- 
2.43.0