[PATCH] ASoC: fsl_asrc_dma: fully initialize structs

[Shengjiu Wang]

On Tue, Jun 14, 2022 at 6:15 PM Sascha Hauer <s.hauer at pengutronix.de> wrote:

> The driver uses two statically ininitialized struct dma_slave_config,
> but only one of them is initialized to zero. Initialize config_be to
> zero as well to make sure that no fields are filled with random values.
> Let the compiler do this instead of explicitly calling memset() which
> makes it easier to read.
>
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
>

Acked-by: Shengjiu Wang <shengjiu.wang at gmail.com>

Best regards
Wang Shengjiu

> ---
>  sound/soc/fsl/fsl_asrc_dma.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
> index 5038faf035cba..fec56dbb64e60 100644
> --- a/sound/soc/fsl/fsl_asrc_dma.c
> +++ b/sound/soc/fsl/fsl_asrc_dma.c
> @@ -138,7 +138,7 @@ static int fsl_asrc_dma_hw_params(struct
> snd_soc_component *component,
>         struct dma_chan *tmp_chan = NULL, *be_chan = NULL;
>         struct snd_soc_component *component_be = NULL;
>         struct fsl_asrc *asrc = pair->asrc;
> -       struct dma_slave_config config_fe, config_be;
> +       struct dma_slave_config config_fe = {}, config_be = {};
>         enum asrc_pair_index index = pair->index;
>         struct device *dev = component->dev;
>         struct device_node *of_dma_node;
> @@ -181,7 +181,6 @@ static int fsl_asrc_dma_hw_params(struct
> snd_soc_component *component,
>                 return -EINVAL;
>         }
>
> -       memset(&config_fe, 0, sizeof(config_fe));
>         ret = snd_dmaengine_pcm_prepare_slave_config(substream, params,
> &config_fe);
>         if (ret) {
>                 dev_err(dev, "failed to prepare DMA config for
> Front-End\n");
> --
> 2.30.2
>
>