lkml.org 
[lkml]   [2020]   [Sep]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] mfd: syscon: Don't free allocated name for regmap_config
On Fri, 25 Sep 2020, Suman Anna wrote:

> On 9/24/20 7:39 AM, Lee Jones wrote:
> > On Thu, 03 Sep 2020, Marc Zyngier wrote:
> >
> >> The name allocated for the regmap_config structure is freed
> >> pretty early, right after the registration of the MMIO region.
> >>
> >> Unfortunately, that doesn't follow the life cycle that debugfs
> >> expects, as it can access the name field long after the free
> >> has occured.
> >>
> >> Move the free on the error path, and keep it forever otherwise.
> >>
> >> Fixes: e15d7f2b81d2 ("mfd: syscon: Use a unique name with regmap_config")
> >> Signed-off-by: Marc Zyngier <maz@kernel.org>
> >> ---
> >> drivers/mfd/syscon.c | 2 +-
> >> 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > Fixed the spelling mistake and applied, thanks.
> >
>
> Marc,
> Can you recheck the behavior once on the latest master to see if this patch is
> still needed? I see a new patch within the regmap core that is dealing with the
> delayed debugfs registration name. This follows the similar design logic I
> suggested on your initial submission [1].
>
> Please see commit 94cc89eb8fa5 ("regmap: debugfs: Fix handling of name string
> for debugfs init delays") in mainline.
>
> Lee,
> I haven't seen this patch in -next yet, so maybe worthwhile to hold it a little
> longer.

It's already applied.

If the lines become superfluous please submit a subsequent patch.

--
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog

\
 
 \ /
  Last update: 2020-09-28 11:21    [W:0.037 / U:7.868 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site