[PATCH v1] selftests: cgroup: Fixes code style errors

[Atul Kumar Pant]

Fixes following checkpatch.pl issues:
ERROR: do not use assignment in if condition
ERROR: Macros starting with if should be enclosed by a do - while

Signed-off-by: Atul Kumar Pant <atulpant.linux@xxxxxxxxx>
---
 tools/testing/selftests/cgroup/cgroup_util.c | 14 ++++++++------
 tools/testing/selftests/cgroup/test_core.c   |  3 ++-
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/tools/testing/selftests/cgroup/cgroup_util.c b/tools/testing/selftests/cgroup/cgroup_util.c
index 0340d4ca8f51..e165c4a703a6 100644
--- a/tools/testing/selftests/cgroup/cgroup_util.c
+++ b/tools/testing/selftests/cgroup/cgroup_util.c
@@ -411,12 +411,14 @@ int dirfd_open_opath(const char *dir)
 	return open(dir, O_DIRECTORY | O_CLOEXEC | O_NOFOLLOW | O_PATH);
 }
 
-#define close_prot_errno(fd)                                                   \
-	if (fd >= 0) {                                                         \
-		int _e_ = errno;                                               \
-		close(fd);                                                     \
-		errno = _e_;                                                   \
-	}
+#define close_prot_errno(fd)				\
+	do {						\
+		if (fd >= 0) {                          \
+			int _e_ = errno;                \
+			close(fd);                      \
+			errno = _e_;                    \
+		}					\
+	} while (0);
 
 static int clone_into_cgroup_run_nowait(const char *cgroup,
 					int (*fn)(const char *cgroup, void *arg),
diff --git a/tools/testing/selftests/cgroup/test_core.c b/tools/testing/selftests/cgroup/test_core.c
index 80aa6b2373b9..ad758e510174 100644
--- a/tools/testing/selftests/cgroup/test_core.c
+++ b/tools/testing/selftests/cgroup/test_core.c
@@ -817,7 +817,8 @@ static int test_cgcore_lesser_ns_open(const char *root)
 	if (cg_enter_current(cg_test_a))
 		goto cleanup;
 
-	if ((status = write(cg_test_b_procs_fd, "0", 1)) >= 0 || errno != ENOENT)
+	status = write(cg_test_b_procs_fd, "0", 1);
+	if (status >= 0 || errno != ENOENT)
 		goto cleanup;
 
 	ret = KSFT_PASS;
-- 
2.25.1