On 27/08/2024 13:46, Jinjie Ruan wrote:
> Use the dev_err_probe() helper to simplify error handling during probe.
> This also handle scenario, when EDEFER is returned and useless error
> is printed.
? Sorry, this cannot happen. Please point to below code which can defer.
>
> Signed-off-by: Jinjie Ruan <ruanjin...@huawei.com>
> ---
> drivers/soc/fsl/qe/tsa.c | 62 +++++++++++++++-------------------------
> 1 file changed, 23 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/soc/fsl/qe/tsa.c b/drivers/soc/fsl/qe/tsa.c
> index 7fa399b7a47c..fc37d23b746d 100644
> --- a/drivers/soc/fsl/qe/tsa.c
> +++ b/drivers/soc/fsl/qe/tsa.c
> @@ -453,10 +453,8 @@ static int tsa_of_parse_tdms(struct tsa *tsa, struct
> device_node *np)
>
> for_each_available_child_of_node_scoped(np, tdm_np) {
> ret = of_property_read_u32(tdm_np, "reg", &tdm_id);
> - if (ret) {
> - dev_err(tsa->dev, "%pOF: failed to read reg\n", tdm_np);
> - return ret;
> - }
> + if (ret)
> + return dev_err_probe(tsa->dev, ret, "%pOF: failed to
> read reg\n", tdm_np);
> switch (tdm_id) {
> case 0:
> tsa->tdms |= BIT(TSA_TDMA);
> @@ -465,18 +463,15 @@ static int tsa_of_parse_tdms(struct tsa *tsa, struct
> device_node *np)
> tsa->tdms |= BIT(TSA_TDMB);
> break;
> default:
> - dev_err(tsa->dev, "%pOF: Invalid tdm_id (%u)\n", tdm_np,
> - tdm_id);
> - return -EINVAL;
> + return dev_err_probe(tsa->dev, -EINVAL, "%pOF: Invalid
> tdm_id (%u)\n",
> + tdm_np, tdm_id);
> }
> }
>
> for_each_available_child_of_node_scoped(np, tdm_np) {
> ret = of_property_read_u32(tdm_np, "reg", &tdm_id);
> - if (ret) {
> - dev_err(tsa->dev, "%pOF: failed to read reg\n", tdm_np);
> - return ret;
> - }
> + if (ret)
> + return dev_err_probe(tsa->dev, ret, "%pOF: failed to
> read reg\n", tdm_np);
>
> tdm = &tsa->tdm[tdm_id];
> tdm->simode_tdm = TSA_SIMODE_TDM_SDM_NORM;
> @@ -484,35 +479,26 @@ static int tsa_of_parse_tdms(struct tsa *tsa, struct
> device_node *np)
> val = 0;
> ret = of_property_read_u32(tdm_np,
> "fsl,rx-frame-sync-delay-bits",
> &val);
> - if (ret && ret != -EINVAL) {
> - dev_err(tsa->dev,
> - "%pOF: failed to read
> fsl,rx-frame-sync-delay-bits\n",
> - tdm_np);
> - return ret;
> - }
> - if (val > 3) {
> - dev_err(tsa->dev,
> - "%pOF: Invalid fsl,rx-frame-sync-delay-bits
> (%u)\n",
> - tdm_np, val);
> - return -EINVAL;
> - }
> + if (ret && ret != -EINVAL)
> + return dev_err_probe(tsa->dev, ret,
> + "%pOF: failed to read
> fsl,rx-frame-sync-delay-bits\n",
> + tdm_np);
> + if (val > 3)
> + return dev_err_probe(tsa->dev, -EINVAL,
> + "%pOF: Invalid
> fsl,rx-frame-sync-delay-bits (%u)\n",
> + tdm_np, val);
> tdm->simode_tdm |= TSA_SIMODE_TDM_RFSD(val);
>
> val = 0;
> ret = of_property_read_u32(tdm_np,
> "fsl,tx-frame-sync-delay-bits",
> &val);
> - if (ret && ret != -EINVAL) {
> - dev_err(tsa->dev,
> - "%pOF: failed to read
> fsl,tx-frame-sync-delay-bits\n",
> - tdm_np);
> - return ret;
> - }
> - if (val > 3) {
> - dev_err(tsa->dev,
> - "%pOF: Invalid fsl,tx-frame-sync-delay-bits
> (%u)\n",
> - tdm_np, val);
> - return -EINVAL;
> - }
> + if (ret && ret != -EINVAL)
> + return dev_err_probe(tsa->dev, ret,
> + "%pOF: failed to read
> fsl,tx-frame-sync-delay-bits\n", tdm_np);
> + if (val > 3)
> + return dev_err_probe(tsa->dev, -EINVAL,
> + "%pOF: Invalid
> fsl,tx-frame-sync-delay-bits (%u)\n",
> + tdm_np, val);
> tdm->simode_tdm |= TSA_SIMODE_TDM_TFSD(val);
>
> if (of_property_read_bool(tdm_np, "fsl,common-rxtx-pins"))
> @@ -645,10 +631,8 @@ static int tsa_probe(struct platform_device *pdev)
> return PTR_ERR(tsa->si_regs);
>
> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "si_ram");
> - if (!res) {
> - dev_err(tsa->dev, "si_ram resource missing\n");
> - return -EINVAL;
> - }
> + if (!res)
> + return dev_err_probe(tsa->dev, -EINVAL, "si_ram resource
> missing\n");
> tsa->si_ram_sz = resource_size(res);
> tsa->si_ram = devm_ioremap_resource(&pdev->dev, res);
> if (IS_ERR(tsa->si_ram))
Best regards,
Krzysztof
