From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BFCD41CFEA9; Tue, 15 Oct 2024 11:48:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728992918; cv=none; b=HQMew1EgDsPG8VUno/oSqK8aShShaO/Me6UelOAYSYpaVwXeecueXaTWSBVN8aV3/DCqiPwX2WxtF31RtaIztZeNjxZ68E+fQMtxiF20FhwDQPN6/y4enGEhESgDHqMGgirkBBwibwGezvUJU/Cnk8Jz1enP6mVxBU7iTf8ID04= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728992918; c=relaxed/simple; bh=PyntYH5wYqgzk5/2hrm6YL0ecjqRRVdAnhvPIAHqmMQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Gku52TrbuyVYTboAkq1AiMJ76ijFJlbqEQKAaBrtaL6LSbhZGzegLz/1gT6J/nP2zgMZpeKPR3twImwCtHSziWHo4Mme6PXo7C2PQp2NIa+k8l+u4kFR4Yxo4piX8wZSAGngmhK9a6nDrcA43KlkiKqAVAXWuX3VLRZQGqdAu44= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=AIJ30RCd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="AIJ30RCd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2C459C4CEC6; Tue, 15 Oct 2024 11:48:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1728992918; bh=PyntYH5wYqgzk5/2hrm6YL0ecjqRRVdAnhvPIAHqmMQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AIJ30RCd+g3lw8e2V7srM7vehgX6gWfMXH73pCG8A5IglWynImKWOd2HvqIzSP5D7 GrJ+1nvy6XwSg7IE+3+Drf7hjWB7P7bz/vFBlP6+NF8KdRtCf9Mz37zSVAf/oEKBCt j8ZgyS9WHRXuzIhc/KIabkzy4W8yGnpoqCpDQAcY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jinjie Ruan , Dave Jiang , Jon Mason , Sasha Levin Subject: [PATCH 5.15 258/691] ntb: intel: Fix the NULL vs IS_ERR() bug for debugfs_create_dir() Date: Tue, 15 Oct 2024 13:23:26 +0200 Message-ID: <20241015112450.589967711@linuxfoundation.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241015112440.309539031@linuxfoundation.org> References: <20241015112440.309539031@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jinjie Ruan [ Upstream commit e229897d373a87ee09ec5cc4ecd4bb2f895fc16b ] The debugfs_create_dir() function returns error pointers. It never returns NULL. So use IS_ERR() to check it. Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers") Signed-off-by: Jinjie Ruan Reviewed-by: Dave Jiang Signed-off-by: Jon Mason Signed-off-by: Sasha Levin --- drivers/ntb/hw/intel/ntb_hw_gen1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c index 41897167abc71..e0a5744372532 100644 --- a/drivers/ntb/hw/intel/ntb_hw_gen1.c +++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c @@ -778,7 +778,7 @@ static void ndev_init_debugfs(struct intel_ntb_dev *ndev) ndev->debugfs_dir = debugfs_create_dir(pci_name(ndev->ntb.pdev), debugfs_dir); - if (!ndev->debugfs_dir) + if (IS_ERR(ndev->debugfs_dir)) ndev->debugfs_info = NULL; else ndev->debugfs_info = -- 2.43.0