From nobody Sat Nov 23 01:48:04 2024 Received: from mail-pf1-f179.google.com (mail-pf1-f179.google.com [209.85.210.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 50FF0126C03; Thu, 14 Nov 2024 16:56:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.179 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731603366; cv=none; b=cHdTr7Mv4ahlv/QAC9WKEp6bLptstV1vLDdju/7FDAu8OFbdW/vhWdeRyw/b5DLtW/+rG/g2D7POeEyHfqguQJvycFNvzIpH7iyj/KKmF+8iH6c1ZTKC2sRH/YDNpuzSzcyAIAeHblFK3udbgSjnJJZVOGerAgdpofL5gRWt4Uo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731603366; c=relaxed/simple; bh=bW24Y2zDBss5OiBEfJp2RH9+LgpRreFMxa7QcBNtfEw=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=X1vnkkTvAy1i8q8hDIfZpwf97bXuNZV679tBUKeRmu+RF5NbjMLqFupw1vLDikaTVZem6ZMlpdPFMrQB1poRK8jnDzhIgI8flfcWqkol0MUIHyaNnBWQoXH9s+fQbgcAIem3eu/zIPXeMi7dtZcxnAGyuliRHv635IiK/lD9Pms= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ei+SQWwi; arc=none smtp.client-ip=209.85.210.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ei+SQWwi" Received: by mail-pf1-f179.google.com with SMTP id d2e1a72fcca58-720c2db824eso803050b3a.0; Thu, 14 Nov 2024 08:56:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1731603364; x=1732208164; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=dN6nOwa9jinNjS2kCCmOR1Y32+iqmTVvvvUdfcXy0mo=; b=ei+SQWwi7MqhYteep8nZfs3FmnmarZdBkuSQK0idHZ5l7r1Z5Dh1H66DzaqhhT1bC9 X4gA7pm33GX2RIolQYYk2QTjx8/ULTdepM1lwsF2lWIFNbZebCU4QvSukYsSQdHV5UH3 HPPUlC5SwNOFcgAFRk7+wsLFrvyicT5Wc9IPggXrl36uEUnDDZjmuQpPKmvYpTzvee/Q kSFiDzjRvbAHSwqmBn/esq8zLRpgptsvZ5QehIBvUkhagUgqdVM5zf3ThS0G7wQLSrH6 VrE2I0WaSwrbwNHxUrd6/wszwBnJhi1u5f6cVdkoBV/rXYO9rEhl23OCqNNDguQl4JxL WTcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731603364; x=1732208164; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=dN6nOwa9jinNjS2kCCmOR1Y32+iqmTVvvvUdfcXy0mo=; b=ct5hcvjlT4bAS6UUvV/CpP1ly8Alpgzf1TArh3xJu8qqt/Shsniu1Ag4Mmkw05MPt6 X/Y8A4Dr/N4zHuPHjJYnc12ilxHD1VvhJETd0zjmT2uMMGj7AU9T0wBUIMiUDIN6Ba1V xy2zaloJ6EIhTwZkzsdjpNvTUO+9tPAj5Sq8oVsR0DZtlukeCkE/VTPl4CJUlMDrFJlT mZ1FZfpMPKy7VaTNoIa+oOGZ0STSQCuSRXGFf1VKiMZq7Uax23M0B9SzaQ2IvQjFc9sd GXDt08cAFfgsMQOWpPgzgIxFBhef2eDIwlaUS1rwdc1ufDFUgusUhG63CuDxsURD5zZb aCsQ== X-Forwarded-Encrypted: i=1; AJvYcCUhUXaEr8OR4L48/UoQny2JzyIs20Ynm4JzZ2XXPGRM1A5NQOClfnREuoXqOf0r5w19uo6OUCPGMQfH6sqrSNnx@vger.kernel.org, AJvYcCWGVOtLwiw/UV4UjouInajOVnRypREICN9J1iQeJ8XP5eJnG2g6sGz71LhhMqFah/cHo6UGkOIu34yxgkM=@vger.kernel.org X-Gm-Message-State: AOJu0YzfT901uvBsfIe6yCwea6/Fc9q+/XDwc6yIFzBccQLABwMhocrc QMNKBOp+8IjOjp+xQoZ8DIwTbt9RqUcKJ7O1aDq6OYMvOgvKSfAac73Zug== X-Google-Smtp-Source: AGHT+IErdRALs2OdOjsTFhmubjjx7yNbQ/ModPzFAI5VavhfJZjOxy4H/qdb3hT8L+66zJBeHcKpaw== X-Received: by 2002:a17:90a:d444:b0:2e2:c40c:6e8e with SMTP id 98e67ed59e1d1-2e9b178eff2mr30608288a91.34.1731603364460; Thu, 14 Nov 2024 08:56:04 -0800 (PST) Received: from visitorckw-System-Product-Name.. ([140.113.216.168]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2e9f207d65csm2166102a91.1.2024.11.14.08.56.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Nov 2024 08:56:03 -0800 (PST) From: Kuan-Wei Chiu To: brendanhiggins@google.com, davidgow@google.com Cc: rmoar@google.com, ruanjinjie@huawei.com, jserv@ccns.ncku.edu.tw, linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org, Kuan-Wei Chiu Subject: [PATCH] kunit: debugfs: Use IS_ERR() for alloc_string_stream() error check Date: Fri, 15 Nov 2024 00:55:58 +0800 Message-Id: <20241114165558.49043-1-visitorckw@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The alloc_string_stream() function only returns ERR_PTR(-ENOMEM) on failure and never returns NULL. Therefore, switching the error check in the caller from IS_ERR_OR_NULL to IS_ERR improves clarity, indicating that this function will return an error pointer (not NULL) when an error occurs. This change avoids any ambiguity regarding the function's return behavior. Link: https://lore.kernel.org/lkml/Zy9deU5VK3YR+r9N@visitorckw-System-Produ= ct-Name Signed-off-by: Kuan-Wei Chiu Reviewed-by: David Gow --- lib/kunit/debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/kunit/debugfs.c b/lib/kunit/debugfs.c index d548750a325a..6273fa9652df 100644 --- a/lib/kunit/debugfs.c +++ b/lib/kunit/debugfs.c @@ -181,7 +181,7 @@ void kunit_debugfs_create_suite(struct kunit_suite *sui= te) * successfully. */ stream =3D alloc_string_stream(GFP_KERNEL); - if (IS_ERR_OR_NULL(stream)) + if (IS_ERR(stream)) return; =20 string_stream_set_append_newlines(stream, true); @@ -189,7 +189,7 @@ void kunit_debugfs_create_suite(struct kunit_suite *sui= te) =20 kunit_suite_for_each_test_case(suite, test_case) { stream =3D alloc_string_stream(GFP_KERNEL); - if (IS_ERR_OR_NULL(stream)) + if (IS_ERR(stream)) goto err; =20 string_stream_set_append_newlines(stream, true); --=20 2.34.1