RE: [PATCH 1/2] irqchip/imx-intmux: Use dev_err_probe() to simplify error handling
Hi, Ahmad
> Subject: Re: [PATCH 1/2] irqchip/imx-intmux: Use dev_err_probe() to simplify
> error handling
>
> Hello,
>
> On 8/11/20 6:25 AM, Anson Huang wrote:
> > dev_err_probe() can reduce code size, uniform error handling and
> > record the defer probe reason etc., use it to simplify the code.
> >
> > Signed-off-by: Anson Huang
> > ---
> > drivers/irqchip/irq-imx-intmux.c | 10 --
> > 1 file changed, 4 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/irqchip/irq-imx-intmux.c
> > b/drivers/irqchip/irq-imx-intmux.c
> > index e35b7b0..2f51ec9 100644
> > --- a/drivers/irqchip/irq-imx-intmux.c
> > +++ b/drivers/irqchip/irq-imx-intmux.c
> > @@ -226,12 +226,10 @@ static int imx_intmux_probe(struct
> platform_device *pdev)
> > }
> >
> > data->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
> > - if (IS_ERR(data->ipg_clk)) {
> > - ret = PTR_ERR(data->ipg_clk);
> > - if (ret != -EPROBE_DEFER)
> > - dev_err(&pdev->dev, "failed to get ipg clk: %d\n", ret);
> > - return ret;
> > - }
> > + if (IS_ERR(data->ipg_clk))
> > + return dev_err_probe(&pdev->dev, PTR_ERR(data->ipg_clk),
> > +"failed to get ipg clk: %ld\n",
> > +PTR_ERR(data->ipg_clk));
>
> Haven't used dev_err_probe myself yet, but the function does
>
> if (err != -EPROBE_DEFER) {
> dev_err(dev, "error %d: %pV", err, &vaf);
>
> so your message would become
>
> "error %d: failed to get ipg clk: %d\n"
>
> printing the same error code twice. If so, you should drop the second.
Correct, I will fix it in V2.
Thanks,
Anson
Re: [PATCH 1/2] irqchip/imx-intmux: Use dev_err_probe() to simplify error handling
Hello,
On 8/11/20 6:25 AM, Anson Huang wrote:
> dev_err_probe() can reduce code size, uniform error handling and record the
> defer probe reason etc., use it to simplify the code.
>
> Signed-off-by: Anson Huang
> ---
> drivers/irqchip/irq-imx-intmux.c | 10 --
> 1 file changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/irqchip/irq-imx-intmux.c
> b/drivers/irqchip/irq-imx-intmux.c
> index e35b7b0..2f51ec9 100644
> --- a/drivers/irqchip/irq-imx-intmux.c
> +++ b/drivers/irqchip/irq-imx-intmux.c
> @@ -226,12 +226,10 @@ static int imx_intmux_probe(struct platform_device
> *pdev)
> }
>
> data->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
> - if (IS_ERR(data->ipg_clk)) {
> - ret = PTR_ERR(data->ipg_clk);
> - if (ret != -EPROBE_DEFER)
> - dev_err(&pdev->dev, "failed to get ipg clk: %d\n", ret);
> - return ret;
> - }
> + if (IS_ERR(data->ipg_clk))
> + return dev_err_probe(&pdev->dev, PTR_ERR(data->ipg_clk),
> + "failed to get ipg clk: %ld\n",
> + PTR_ERR(data->ipg_clk));
Haven't used dev_err_probe myself yet, but the function does
if (err != -EPROBE_DEFER) {
dev_err(dev, "error %d: %pV", err, &vaf);
so your message would become
"error %d: failed to get ipg clk: %d\n"
printing the same error code twice. If so, you should drop the second.
Cheers
Ahmad
>
> data->channum = channum;
> raw_spin_lock_init(&data->lock);
>
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