On 2024/8/27 21:50, Krzysztof Kozlowski wrote: > 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. > Thank you! This is not referring to a specific one, but rather the benefits it offers,simplify code is the main purpose, if necessary, it will be removed in next version. >> >> Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx> >> --- >> 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 >