linux-kernel - Re: [PATCH v2] driver core: Fix bus

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Message-ID: <20220816111311.GC1108868@roeck-us.net>
Date:   Tue, 16 Aug 2022 04:13:11 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Isaac Manjarres <isaacmanjarres@...gle.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Russell King <rmk+kernel@....linux.org.uk>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Saravana Kannan <saravanak@...gle.com>, stable@...nel.org,
        kernel-team@...roid.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] driver core: Fix bus_type.match() error handling

On Mon, Aug 15, 2022 at 10:17:23PM -0700, Isaac Manjarres wrote:
> On Mon, Aug 15, 2022 at 09:25:07PM -0700, Guenter Roeck wrote:
> > > v1 -> v2:
> > > - Fixed the logic in __driver_attach() to allow a driver to continue
> > >   attempting to match and bind with devices in case of any error, not
> > >   just probe deferral.
> > > 
> > > Guenter,
> > > 
> > > Can you please give test this patch to make sure it still works for you?
> > > 
> > 
> > Not as well as v1. I still see the clk crash with versatileab, and imx25-pdk
> > emulations now stall during boot when trying to boot from usb.
> > 
> > Guenter
> Thanks for trying the patch out. This patch isn't meant to fix the clk
> crash that you mentioned on another thread. I had made the following patch for
> that: https://lore.kernel.org/lkml/YvqTvuqSll30Rv2k@google.com/. Have
> you been able to give that a shot yet? If not can you please test with the
> patch in this e-mail and that patch?
> 

No, sorry, I missed that one. It does not apply, though - it is whitespace
corrupted. I tried to fix it up, but that failed.

> Please make sure you do not include this patch as it is known to cause
> deadlocks: https://lore.kernel.org/lkml/YvXhJRlHN9OAIA5l@google.com/.
> 
No, I did not include that patch.

> Did you test imx25-pdk emulations with just v1 of this patch previously?
> 

I am quite sure I did because it is a single setup.

Thanks,
Guenter