[patch v2] drm/msm/dsi: free first element on error

[Jani Nikula]

On Sun, 26 Feb 2017, Daniel Vetter <daniel at ffwll.ch> wrote:
> On Thu, Feb 16, 2017 at 02:27:08PM +0200, Jani Nikula wrote:
>> On Thu, 16 Feb 2017, Rob Clark <robdclark at gmail.com> wrote:
>> > On Thu, Feb 16, 2017 at 7:00 AM, Dan Carpenter <dan.carpenter at oracle.com> wrote:
>> >> We're off by one here.  We free something that wasn't allocated and we
>> >> don't free msm_host->bus_clks[].
>> >>
>> >> Fixes: 6e0eb52eba9e ("drm/msm/dsi: Parse bus clocks from a list")
>> >> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
>> >
>> > Thanks
>> >
>> > Reviewed-by: Rob Clark <robdclark at gmail.com>
>> 
>> And for good measure,
>> 
>> Reviewed-by: Jani Nikula <jani.nikula at intel.com>
>
> So 2 r-b from maintainers, no one said he'll apply. This isn't really
> great coordination :-) Note that drm-misc-next is always open, so you
> could always smash it in there, irrespective of merge window state. hint,
> hint ...

Admittedly I shied away from touching drm/msm.

BR,
Jani.

> -Daniel
>
>> 
>> 
>> >
>> >>
>> >> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
>> >> index 1fc07ce24686..4fa32296162e 100644
>> >> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
>> >> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
>> >> @@ -437,7 +437,7 @@ static int dsi_bus_clk_enable(struct msm_dsi_host *msm_host)
>> >>
>> >>         return 0;
>> >>  err:
>> >> -       for (; i > 0; i--)
>> >> +       while (i--)
>> >>                 clk_disable_unprepare(msm_host->bus_clks[i]);
>> >>
>> >>         return ret;
>> 
>> -- 
>> Jani Nikula, Intel Open Source Technology Center
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-- 
Jani Nikula, Intel Open Source Technology Center