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Date:   Fri, 6 Dec 2019 08:39:02 +0100
From:   Marc Kleine-Budde <>
To:     Dan Murphy <>,
        Pankaj Sharma <>,,,
Subject: Re: [PATCH 0/2] can: m_can_platform: Bug fix of kernel panic for

On 12/5/19 9:57 PM, Dan Murphy wrote:
> Pankaj
> On 11/19/19 4:20 AM, Pankaj Sharma wrote:
>> The current code is failing while clock prepare enable because of not
>> getting proper clock from platform device.
>> A device driver for CAN controller hardware registers itself with the
>> Linux network layer as a network device. So, the driver data for m_can
>> should ideally be of type net_device.
>> Further even when passing the proper net device in probe function the
>> code was hanging because of the function m_can_runtime_resume() getting
>> recursively called from m_can_class_resume().
>> Pankaj Sharma (2):
>>    can: m_can_platform: set net_device structure as driver data
>>    can: m_can_platform: remove unnecessary m_can_class_resume() call
> Did you CC: linux-stable for these?  We are probably going to have 
> customers picking up 5.4 LTS and would need these bug fixes.

Both patches made it into the v5.4 release. So no need for stable.


Pengutronix e.K.                 | Marc Kleine-Budde           |
Embedded Linux                   |  |
Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |

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