Re: [PATCH] PM / OPP: Fix NULL pointer dereference crash when disabling OPPs

[Viresh Kumar]

On 11-02-16, 11:25, Jon Hunter wrote:
> Commit 7d34d56ef334 ("PM / OPP: Disable OPPs that aren't supported by
> the regulator") disables OPPs that are not supported by the regulator.
> This is causes a crash on Tegra124 Jetson TK1 when using the DFLL clock
> source for the CPU. The DFLL manages the voltage itself and so there is
> no regulator specified for the OPPs and so we get a crash when we try to
> dereference the regulator pointer. Fix this by checking to see if the
> regulator IS_ERR_OR_NULL before dereferencing it.
> 
> Fixes: 7d34d56ef334 ("PM / OPP: Disable OPPs that aren't supported by the
> regulator")
> 
> Signed-off-by: Jon Hunter <jonathanh@xxxxxxxxxx>
> ---
>  drivers/base/power/opp/core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Sorry about that :(

Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

-- 
viresh