Re: [PATCH RESEND v2 1/2] bus: bt1-apb: Don't print error on -EPROBE_DEFER

From: Serge Semin
Date: Fri Jun 24 2022 - 17:12:41 EST


Oops, wrong version ID. I'll resend it.

-Sergey

On Sat, Jun 25, 2022 at 12:10:13AM +0300, Serge Semin wrote:
> The Baikal-T1 APB bus driver correctly handles the deferred probe
> situation, but still pollutes the system log with a misleading error
> message. Let's fix that by using the dev_err_probe() method to print the
> log message in case of the clocks/resets request errors.
>
> Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx>
>
> ---
>
> Link: https://lore.kernel.org/lkml/20220610080103.10689-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx/
> Changelog v2:
> - Use the dev_err_probe() return value as the return status of the
> corresponding method. (@Philipp)
>
> Link: https://lore.kernel.org/lkml/20220610104030.28399-1-Sergey.Semin@xxxxxxxxxxxxxxxxxxxx
> Changelog v3:
> - Just resend.
> - Rebase onto the kernel v5.19-rcX.
> ---
> drivers/bus/bt1-apb.c | 14 ++++++--------
> 1 file changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/bus/bt1-apb.c b/drivers/bus/bt1-apb.c
> index b25ff941e7c7..63b1b4a76671 100644
> --- a/drivers/bus/bt1-apb.c
> +++ b/drivers/bus/bt1-apb.c
> @@ -175,10 +175,9 @@ static int bt1_apb_request_rst(struct bt1_apb *apb)
> int ret;
>
> apb->prst = devm_reset_control_get_optional_exclusive(apb->dev, "prst");
> - if (IS_ERR(apb->prst)) {
> - dev_warn(apb->dev, "Couldn't get reset control line\n");
> - return PTR_ERR(apb->prst);
> - }
> + if (IS_ERR(apb->prst))
> + return dev_err_probe(apb->dev, PTR_ERR(apb->prst),
> + "Couldn't get reset control line\n");
>
> ret = reset_control_deassert(apb->prst);
> if (ret)
> @@ -199,10 +198,9 @@ static int bt1_apb_request_clk(struct bt1_apb *apb)
> int ret;
>
> apb->pclk = devm_clk_get(apb->dev, "pclk");
> - if (IS_ERR(apb->pclk)) {
> - dev_err(apb->dev, "Couldn't get APB clock descriptor\n");
> - return PTR_ERR(apb->pclk);
> - }
> + if (IS_ERR(apb->pclk))
> + return dev_err_probe(apb->dev, PTR_ERR(apb->pclk),
> + "Couldn't get APB clock descriptor\n");
>
> ret = clk_prepare_enable(apb->pclk);
> if (ret) {
> --
> 2.35.1
>