linux-kernel - [PATCH 1/4] kselftest/mm: Clarify errors for pipe()

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Message-Id: <20250610-selftest-mm-cow-tweaks-v1-1-43cd7457500f@kernel.org>
Date: Tue, 10 Jun 2025 15:13:54 +0100
From: Mark Brown <broonie@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>, 
 Shuah Khan <shuah@...nel.org>, David Hildenbrand <david@...hat.com>
Cc: linux-mm@...ck.org, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Subject: [PATCH 1/4] kselftest/mm: Clarify errors for pipe()

Specify that errors reported from pipe() failures are the result of
failures.

Suggested-by: David Hildenbrand <david@...hat.com>
Signed-off-by: Mark Brown <broonie@...nel.org>
---
 tools/testing/selftests/mm/cow.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/mm/cow.c b/tools/testing/selftests/mm/cow.c
index dbbcc5eb3dce..0adc0ab142c1 100644
--- a/tools/testing/selftests/mm/cow.c
+++ b/tools/testing/selftests/mm/cow.c
@@ -113,11 +113,11 @@ struct comm_pipes {
 static int setup_comm_pipes(struct comm_pipes *comm_pipes)
 {
 	if (pipe(comm_pipes->child_ready) < 0) {
-		ksft_perror("pipe()");
+		ksft_perror("pipe() failed");
 		return -errno;
 	}
 	if (pipe(comm_pipes->parent_ready) < 0) {
-		ksft_perror("pipe()");
+		ksft_perror("pipe() failed");
 		close(comm_pipes->child_ready[0]);
 		close(comm_pipes->child_ready[1]);
 		return -errno;

-- 
2.39.5