Hi Christian,
Please change the patch title as following and resend it.
- PM / devfreq: exynos-bus: Fix NULL pointer dereference
I'll ask the next version to be merged directly into linux-pm.git.
Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
On Fri, Jul 1, 2022 at 9:08 PM Christian Marangi <ansuelsmth@xxxxxxxxx> wrote:
>
> Fix exynos-bus NULL pointer dereference by correctly using the local
> generated freq_table to output the debug values instead of using the
> profile freq_table that is not used in the driver.
>
> Reported-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Fixes: b5d281f6c16d ("PM / devfreq: Rework freq_table to be local to devfreq struct")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
> ---
> drivers/devfreq/exynos-bus.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
> index b5615e667e31..79725bbb4bb0 100644
> --- a/drivers/devfreq/exynos-bus.c
> +++ b/drivers/devfreq/exynos-bus.c
> @@ -447,9 +447,9 @@ static int exynos_bus_probe(struct platform_device *pdev)
> }
> }
>
> - max_state = bus->devfreq->profile->max_state;
> - min_freq = (bus->devfreq->profile->freq_table[0] / 1000);
> - max_freq = (bus->devfreq->profile->freq_table[max_state - 1] / 1000);
> + max_state = bus->devfreq->max_state;
> + min_freq = (bus->devfreq->freq_table[0] / 1000);
> + max_freq = (bus->devfreq->freq_table[max_state - 1] / 1000);
> pr_info("exynos-bus: new bus device registered: %s (%6ld KHz ~ %6ld KHz)\n",
> dev_name(dev), min_freq, max_freq);
>
> --
> 2.36.1
>
--
Best Regards,
Chanwoo Choi
