Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933578AbcKNKB5 (ORCPT ); Mon, 14 Nov 2016 05:01:57 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:40583 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933366AbcKNKBq (ORCPT ); Mon, 14 Nov 2016 05:01:46 -0500 From: Nayna Jain To: tpmdd-devel@lists.sourceforge.net Cc: peterhuewe@gmx.de, tpmdd@selhorst.net, jarkko.sakkinen@linux.intel.com, jgunthorpe@obsidianresearch.com, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, Nayna Jain Subject: [PATCH v6 8/9] tpm: replace of_find_node_by_name() with dev of_node property Date: Mon, 14 Nov 2016 05:00:55 -0500 X-Mailer: git-send-email 2.5.0 In-Reply-To: <1479117656-12403-1-git-send-email-nayna@linux.vnet.ibm.com> References: <1479117656-12403-1-git-send-email-nayna@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16111410-0040-0000-0000-000002C5943D X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16111410-0041-0000-0000-00000BAD7B07 Message-Id: <1479117656-12403-9-git-send-email-nayna@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-11-14_03:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609300000 definitions=main-1611140206 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1294 Lines: 45 Using the device of_node property is a better way to refer to the device tree node rather than of_find_node_by_name(). Suggested-by: Jason Gunthorpe Signed-off-by: Nayna Jain Reviewed-by: Jarkko Sakkinen --- drivers/char/tpm/tpm_of.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/char/tpm/tpm_of.c b/drivers/char/tpm/tpm_of.c index 7c30752..22b8f81 100644 --- a/drivers/char/tpm/tpm_of.c +++ b/drivers/char/tpm/tpm_of.c @@ -29,7 +29,8 @@ int read_log_of(struct tpm_chip *chip) struct tpm_bios_log *log; log = &chip->log; - np = of_find_node_by_name(NULL, "vtpm"); + if (chip->dev.parent->of_node) + np = chip->dev.parent->of_node; if (!np) { pr_err("%s: ERROR - IBMVTPM not supported\n", __func__); return -ENODEV; @@ -55,18 +56,15 @@ int read_log_of(struct tpm_chip *chip) if (!log->bios_event_log) { pr_err("%s: ERROR - Not enough memory for BIOS measurements\n", __func__); - of_node_put(np); return -ENOMEM; } log->bios_event_log_end = log->bios_event_log + *sizep; memcpy(log->bios_event_log, __va(*basep), *sizep); - of_node_put(np); return 0; cleanup_eio: - of_node_put(np); return -EIO; } -- 2.5.0