[PATCH] clk: sifive: check wrpll_configure_for_rate() return value

[Sean Anderson]

On 2/16/24 12:06, Heinrich Schuchardt wrote:
> wrpll_configure_for_rate() might fail. We should check the return value.
> 
> Fixes: d56d79ed27c6 ("drivers: clk: add fu740 support")
> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
> ---
>   drivers/clk/sifive/sifive-prci.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/sifive/sifive-prci.c b/drivers/clk/sifive/sifive-prci.c
> index c8fb6002907..a950736f11b 100644
> --- a/drivers/clk/sifive/sifive-prci.c
> +++ b/drivers/clk/sifive/sifive-prci.c
> @@ -209,7 +209,9 @@ unsigned long sifive_prci_wrpll_round_rate(struct __prci_clock *pc,
>   
>   	memcpy(&c, &pwd->c, sizeof(c));
>   
> -	wrpll_configure_for_rate(&c, rate, *parent_rate);
> +	r = wrpll_configure_for_rate(&c, rate, *parent_rate);
> +	if (r)
> +		return r;
>   
>   	return wrpll_calc_output_rate(&c, *parent_rate);
>   }

Reviewed-by: Sean Anderson <seanga2 at gmail.com>