Re: [PATCH 2/2] backlight: pwm: clean up pwm requested using legacy API

[Lee Jones <lee.jones@linaro.org>]

On Thu, 06 Nov 2014, Greg KH wrote:

> On Fri, Nov 07, 2014 at 12:10:25AM +0200, Vladimir Zapolskiy wrote:
> > Hello Greg, Thierry,
> > 
> > On 11.10.2014 17:21, Greg KH wrote:
> > > On Sat, Oct 11, 2014 at 04:46:26PM +0300, Vladimir Zapolskiy wrote:
> > >> If PWM device is requested by means of legacy API pwm_request(), its
> > >> resources are not freed on module unbind, which may cause an oops on
> > >> access, e.g. by reading /sys/kernel/debug/pwm.
> > >>
> > >> Reported-by: Dmitry Eremin-Solenikov <dmitry_eremin@mentor.com>
> > >> Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
> > >> ---
> > >>  drivers/video/backlight/pwm_bl.c |    4 ++++
> > >>  1 file changed, 4 insertions(+)
> > > 
> > > <formletter>
> > > 
> > > This is not the correct way to submit patches for inclusion in the
> > > stable kernel tree.  Please read Documentation/stable_kernel_rules.txt
> > > for how to do this properly.
> > > 
> > > </formletter>
> > > --
> > 
> > could you please review the change? I believe it would be nice to have
> > oops fix in v3.18.
> 
> drivers/video/ is not under my control, so there's nothing I can do
> here, sorry...

I can apply this with Thierry's Ack.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
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