Re: [PATCH 1/3] media: imx7-mipi-csis: Propagate the error if clock enabling fails

[Rui Miguel Silva <rmfrfs@gmail.com>]

Oi Fabio,
On Fri 31 May 2019 at 18:45, Fabio Estevam wrote:
> Currently the return value from clk_bulk_prepare_enable() is checked,
> but it is not propagate it in the case of failure.
>
> Fix it and also move the error message to the caller of
> mipi_csis_clk_enable().
>
> Signed-off-by: Fabio Estevam <festevam@gmail.com>

Thanks for the 3 patches. for all of them:
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>

---
Cheers,
        Rui

> ---
>  drivers/staging/media/imx/imx7-mipi-csis.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
> index 042837b8ea28..1b538ae77364 100644
> --- a/drivers/staging/media/imx/imx7-mipi-csis.c
> +++ b/drivers/staging/media/imx/imx7-mipi-csis.c
> @@ -456,13 +456,9 @@ static void mipi_csis_set_params(struct csi_state *state)
>  			MIPI_CSIS_CMN_CTRL_UPDATE_SHADOW_CTRL);
>  }
>
> -static void mipi_csis_clk_enable(struct csi_state *state)
> +static int mipi_csis_clk_enable(struct csi_state *state)
>  {
> -	int ret;
> -
> -	ret = clk_bulk_prepare_enable(state->num_clks, state->clks);
> -	if (ret < 0)
> -		dev_err(state->dev, "failed to enable clocks\n");
> +	return clk_bulk_prepare_enable(state->num_clks, state->clks);
>  }
>
>  static void mipi_csis_clk_disable(struct csi_state *state)
> @@ -989,7 +985,11 @@ static int mipi_csis_probe(struct platform_device *pdev)
>  	if (ret < 0)
>  		return ret;
>
> -	mipi_csis_clk_enable(state);
> +	ret = mipi_csis_clk_enable(state);
> +	if (ret < 0) {
> +		dev_err(state->dev, "failed to enable clocks: %d\n", ret);
> +		return ret;
> +	}
>
>  	ret = devm_request_irq(dev, state->irq, mipi_csis_irq_handler,
>  			       0, dev_name(dev), state);