Re: [PATCH -next] remoteproc/mediatek: fix invalid use of sizeof in scp_ipi_init()

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On Sat, 9 May 2020 at 02:38, Wei Yongjun <weiyongjun1@xxxxxxxxxx> wrote:
>
> sizeof() when applied to a pointer typed expression gives the
> size of the pointer, not that of the pointed data.
>
> Fixes: 63c13d61eafe ("remoteproc/mediatek: add SCP support for mt8183")
> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
> Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
> ---
>  drivers/remoteproc/mtk_scp.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
> index 2bead57c9cf9..ac13e7b046a6 100644
> --- a/drivers/remoteproc/mtk_scp.c
> +++ b/drivers/remoteproc/mtk_scp.c
> @@ -132,8 +132,8 @@ static int scp_ipi_init(struct mtk_scp *scp)
>                 (struct mtk_share_obj __iomem *)(scp->sram_base + recv_offset);
>         scp->send_buf =
>                 (struct mtk_share_obj __iomem *)(scp->sram_base + send_offset);
> -       memset_io(scp->recv_buf, 0, sizeof(scp->recv_buf));
> -       memset_io(scp->send_buf, 0, sizeof(scp->send_buf));
> +       memset_io(scp->recv_buf, 0, sizeof(*scp->recv_buf));
> +       memset_io(scp->send_buf, 0, sizeof(*scp->send_buf));

Reviewed-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>

>
>         return 0;
>  }
>
>
>



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