From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934285AbeE2NXF (ORCPT ); Tue, 29 May 2018 09:23:05 -0400 Received: from fllnx210.ext.ti.com ([198.47.19.17]:59139 "EHLO fllnx210.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933444AbeE2NXC (ORCPT ); Tue, 29 May 2018 09:23:02 -0400 From: Faiz Abbas To: , , , CC: , , Subject: [PATCH] can: m_can: Fix runtime resume call Date: Tue, 29 May 2018 18:54:26 +0530 Message-ID: <20180529132426.31216-1-faiz_abbas@ti.com> X-Mailer: git-send-email 2.17.0 MIME-Version: 1.0 Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org pm_runtime_get_sync() returns a 1 if the state of the device is already 'active'. This is not a failure case and should return a success. Therefore fix error handling for pm_runtime_get_sync() call such that it returns success when the value is 1. Also cleanup the TODO for using runtime PM for sleep mode as that is implemented. Signed-off-by: Faiz Abbas --- drivers/net/can/m_can/m_can.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index a9fbf81ac3d4..04c48371ab2a 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -634,10 +634,12 @@ static int m_can_clk_start(struct m_can_priv *priv) int err; err = pm_runtime_get_sync(priv->device); - if (err) + if (err < 0) { pm_runtime_put_noidle(priv->device); + return err; + } - return err; + return 0; } static void m_can_clk_stop(struct m_can_priv *priv) @@ -1687,8 +1689,6 @@ static int m_can_plat_probe(struct platform_device *pdev) return ret; } -/* TODO: runtime PM with power down or sleep mode */ - static __maybe_unused int m_can_suspend(struct device *dev) { struct net_device *ndev = dev_get_drvdata(dev); -- 2.17.0