Re: [PATCH] clk: at91: fix count of periph clocks passed to pmc_data_allocate

[Alexandre Belloni]

hi,

Subject should have been:
clk: at91: sama5d2: fix count of periph clocks passed to pmc_data_allocate



On 09/06/2021 10:01:44+0200, Clément Léger wrote:
> When allocating clk_hw structure, only the periph32 clocks are considered.
> Since sama5d2_periphck are also added to the phws there is currently an
> out of bound write. Fix this by adding the count of periphck to periph32ck.
> 
> Signed-off-by: Clément Léger <clement.leger@xxxxxxxxxxx>
Fixes: a2038077de9a ("clk: at91: add sama5d2 PMC driver")

> ---
>  drivers/clk/at91/sama5d2.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
> index 3d1f78176c3e..663b73a032ee 100644
> --- a/drivers/clk/at91/sama5d2.c
> +++ b/drivers/clk/at91/sama5d2.c
> @@ -170,7 +170,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
>  
>  	sama5d2_pmc = pmc_data_allocate(PMC_AUDIOPLLCK + 1,
>  					nck(sama5d2_systemck),
> -					nck(sama5d2_periph32ck),
> +					nck(sama5d2_periphck) + nck(sama5d2_periph32ck),
>  					nck(sama5d2_gck), 3);
>  	if (!sama5d2_pmc)
>  		return;
> -- 
> 2.32.0
> 

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com