linux-kernel - [PATCH 2/2] can: m_can_platform: remove unnecessary m_can_class

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1574158838-4616-3-git-send-email-pankj.sharma@samsung.com>
Date:   Tue, 19 Nov 2019 15:50:38 +0530
From:   Pankaj Sharma <pankj.sharma@...sung.com>
To:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     wg@...ndegger.com, mkl@...gutronix.de, davem@...emloft.net,
        dmurphy@...com, rcsekar@...sung.com, pankaj.dubey@...sung.com,
        Pankaj Sharma <pankj.sharma@...sung.com>,
        Sriram Dash <sriram.dash@...sung.com>
Subject: [PATCH 2/2] can: m_can_platform: remove unnecessary
 m_can_class_resume() call

The function m_can_runtime_resume() is getting recursively called from
m_can_class_resume(). This results in a lock up.

We need not call m_can_class_resume() during m_can_runtime_resume().

Fixes: f524f829b75a ("can: m_can: Create a m_can platform framework")

Signed-off-by: Pankaj Sharma <pankj.sharma@...sung.com>
Signed-off-by: Sriram Dash <sriram.dash@...sung.com>
---
 drivers/net/can/m_can/m_can_platform.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/can/m_can/m_can_platform.c b/drivers/net/can/m_can/m_can_platform.c
index 2eaa354..38ea5e6 100644
--- a/drivers/net/can/m_can/m_can_platform.c
+++ b/drivers/net/can/m_can/m_can_platform.c
@@ -166,8 +166,6 @@ static int __maybe_unused m_can_runtime_resume(struct device *dev)
 	if (err)
 		clk_disable_unprepare(mcan_class->hclk);
 
-	m_can_class_resume(dev);
-
 	return err;
 }
 
-- 
2.7.4