linux-kernel - Re: [PATCH] soc: qcom: llcc: Check return value on Broadcast

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Date: Fri, 2 Feb 2024 11:56:53 -0800
From: Elliot Berman <quic_eberman@...cinc.com>
To: Unnathi Chalicheemala <quic_uchalich@...cinc.com>
CC: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Satya Durga Srinivasu Prabhala
	<quic_satyap@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <kernel@...cinc.com>, Dmitry Baryshkov
	<dmitry.baryshkov@...aro.org>
Subject: Re: [PATCH] soc: qcom: llcc: Check return value on Broadcast_OR reg
 read

On Fri, Feb 02, 2024 at 11:47:43AM -0800, Unnathi Chalicheemala wrote:
> Commit a3134fb09e0b ("drivers: soc: Add LLCC driver") didn't
> check return value after Broadcast_OR register read in
> llcc_update_act_ctrl(), add it.
> 

Reviewed-by: Elliot Berman <quic_eberman@...cinc.com>

You'll probably want to add:

Fixes: a3134fb09e0b ("drivers: soc: Add LLCC driver")

> Signed-off-by: Unnathi Chalicheemala <quic_uchalich@...cinc.com>
> ---
>  drivers/soc/qcom/llcc-qcom.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
> index 4ca88eaebf06..cbef0dea1d5d 100644
> --- a/drivers/soc/qcom/llcc-qcom.c
> +++ b/drivers/soc/qcom/llcc-qcom.c
> @@ -859,6 +859,8 @@ static int llcc_update_act_ctrl(u32 sid,
>  	ret = regmap_read_poll_timeout(drv_data->bcast_regmap, status_reg,
>  				      slice_status, !(slice_status & status),
>  				      0, LLCC_STATUS_READ_DELAY);
> +	if (ret)
> +		return ret;
>  
>  	if (drv_data->version >= LLCC_VERSION_4_1_0_0)
>  		ret = regmap_write(drv_data->bcast_regmap, act_clear_reg,
> 
> ---
> base-commit: 021533194476035883300d60fbb3136426ac8ea5
> change-id: 20240202-fix_llcc_update_act_ctrl-64908aed9450
> 
> Best regards,
> -- 
> Unnathi Chalicheemala <quic_uchalich@...cinc.com>
>