linux-kernel - Re: [PATCH 1/3] media: venus: use NULL instead of zero for pointers

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Date:   Fri, 9 Apr 2021 14:08:34 +0300
From:   Stanimir Varbanov <svarbanov@...sol.com>
To:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: Re: [PATCH 1/3] media: venus: use NULL instead of zero for pointers

Hi Mauro,

On 4/8/21 10:40 AM, Mauro Carvalho Chehab wrote:
> As reported by sparse:
> 
> 	drivers/media/platform/qcom/venus/core.c:227:41: warning: Using plain integer as NULL pointer
> 	drivers/media/platform/qcom/venus/core.c:228:34: warning: Using plain integer as NULL pointer
> 
> Two vars are using zero instead of NULL for pointers. Not really
> an issue, but using NULL makes it clearer that the init data is
> expecting a pointer.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
> ---
>  drivers/media/platform/qcom/venus/core.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Acked-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>

> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index f5b88b96f5f7..4451e3c11bc0 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -224,8 +224,8 @@ static void venus_assign_register_offsets(struct venus_core *core)
>  		core->cpu_cs_base = core->base + CPU_CS_BASE;
>  		core->cpu_ic_base = core->base + CPU_IC_BASE;
>  		core->wrapper_base = core->base + WRAPPER_BASE;
> -		core->wrapper_tz_base = 0;
> -		core->aon_base = 0;
> +		core->wrapper_tz_base = NULL;
> +		core->aon_base = NULL;
>  	}
>  }
>  
> 

-- 
regards,
Stan