On 15 March 2017 at 12:31, Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> wrote:
> As of commit bb475230b8e5 ("reset: make optional functions really
> optional"), the reset framework API calls use NULL pointers to describe
> optional, non-present reset controls.
>
> This allows to return errors from devm_reset_control_get_optional and to
> call reset_control_(de)assert unconditionally.
>
> Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> Acked-by: Chen-Yu Tsai <wens@xxxxxxxx>
Thanks, applied for next!
Kind regards
Uffe
> ---
> drivers/mmc/host/sunxi-mmc.c | 18 +++++++-----------
> 1 file changed, 7 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
> index 6ffcd2838272c..4dbdcdfaeb86a 100644
> --- a/drivers/mmc/host/sunxi-mmc.c
> +++ b/drivers/mmc/host/sunxi-mmc.c
> @@ -1177,7 +1177,7 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
> }
>
> host->reset = devm_reset_control_get_optional(&pdev->dev, "ahb");
> - if (PTR_ERR(host->reset) == -EPROBE_DEFER)
> + if (IS_ERR(host->reset))
> return PTR_ERR(host->reset);
>
> ret = clk_prepare_enable(host->clk_ahb);
> @@ -1204,12 +1204,10 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
> goto error_disable_clk_output;
> }
>
> - if (!IS_ERR(host->reset)) {
> - ret = reset_control_deassert(host->reset);
> - if (ret) {
> - dev_err(&pdev->dev, "reset err %d\n", ret);
> - goto error_disable_clk_sample;
> - }
> + ret = reset_control_deassert(host->reset);
> + if (ret) {
> + dev_err(&pdev->dev, "reset err %d\n", ret);
> + goto error_disable_clk_sample;
> }
>
> /*
> @@ -1225,8 +1223,7 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
> sunxi_mmc_handle_manual_stop, 0, "sunxi-mmc", host);
>
> error_assert_reset:
> - if (!IS_ERR(host->reset))
> - reset_control_assert(host->reset);
> + reset_control_assert(host->reset);
> error_disable_clk_sample:
> clk_disable_unprepare(host->clk_sample);
> error_disable_clk_output:
> @@ -1309,8 +1306,7 @@ static int sunxi_mmc_remove(struct platform_device *pdev)
> disable_irq(host->irq);
> sunxi_mmc_reset_host(host);
>
> - if (!IS_ERR(host->reset))
> - reset_control_assert(host->reset);
> + reset_control_assert(host->reset);
>
> clk_disable_unprepare(host->clk_sample);
> clk_disable_unprepare(host->clk_output);
> --
> 2.11.0
>
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