[PATCH 3/3] mmc: sdhci-of-dwcmshc: use dev_err_probe() to simplify error paths

[Artem Shimko]

Replace common pattern of dev_err() + return with dev_err_probe() in
probe functions and their callees. This macro provides standardized
error message format with symbolic error names and adds deferred probe
debugging information.

The conversion makes the code more compact and ensures consistent error
logging across all initialization paths.

Signed-off-by: Artem Shimko <a.shimko.dev@xxxxxxxxx>
---
 drivers/mmc/host/sdhci-of-dwcmshc.c | 31 +++++++++++------------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c
index 29bb46783ee5..ccd5f4d6fec0 100644
--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
+++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
@@ -917,11 +917,9 @@ static int dwcmshc_rk35xx_init(struct device *dev, struct sdhci_host *host,
 		return -ENOMEM;
 
 	priv->reset = devm_reset_control_array_get_optional_exclusive(mmc_dev(host->mmc));
-	if (IS_ERR(priv->reset)) {
-		err = PTR_ERR(priv->reset);
-		dev_err(mmc_dev(host->mmc), "failed to get reset control %d\n", err);
-		return err;
-	}
+	if (IS_ERR(priv->reset))
+		return dev_err_probe(mmc_dev(host->mmc), PTR_ERR(priv->reset),
+				     "failed to get reset control\n");
 
 	err = dwcmshc_get_enable_other_clks(mmc_dev(host->mmc), dwc_priv,
 					    ARRAY_SIZE(clk_ids), clk_ids);
@@ -1781,10 +1779,8 @@ static int eic7700_init(struct device *dev, struct sdhci_host *host, struct dwcm
 	dwc_priv->priv = priv;
 
 	ret = sdhci_eic7700_reset_init(dev, dwc_priv->priv);
-	if (ret) {
-		dev_err(dev, "failed to reset\n");
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to reset\n");
 
 	ret = dwcmshc_get_enable_other_clks(mmc_dev(host->mmc), dwc_priv,
 					    ARRAY_SIZE(clk_ids), clk_ids);
@@ -1792,16 +1788,14 @@ static int eic7700_init(struct device *dev, struct sdhci_host *host, struct dwcm
 		return ret;
 
 	ret = of_parse_phandle_with_fixed_args(dev->of_node, "eswin,hsp-sp-csr", 2, 0, &args);
-	if (ret) {
-		dev_err(dev, "Fail to parse 'eswin,hsp-sp-csr' phandle (%d)\n", ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret, "Fail to parse 'eswin,hsp-sp-csr' phandle\n");
 
 	hsp_regmap = syscon_node_to_regmap(args.np);
 	if (IS_ERR(hsp_regmap)) {
-		dev_err(dev, "Failed to get regmap for 'eswin,hsp-sp-csr'\n");
 		of_node_put(args.np);
-		return PTR_ERR(hsp_regmap);
+		return dev_err_probe(dev, PTR_ERR(hsp_regmap),
+				     "Failed to get regmap for 'eswin,hsp-sp-csr'\n");
 	}
 	hsp_int_status = args.args[0];
 	hsp_pwr_ctrl = args.args[1];
@@ -2408,10 +2402,9 @@ static int dwcmshc_probe(struct platform_device *pdev)
 	u32 extra, caps;
 
 	pltfm_data = device_get_match_data(&pdev->dev);
-	if (!pltfm_data) {
-		dev_err(&pdev->dev, "Error: No device match data found\n");
-		return -ENODEV;
-	}
+	if (!pltfm_data)
+		return dev_err_probe(&pdev->dev, -ENODEV,
+				     "Error: No device match data found\n");
 
 	host = sdhci_pltfm_init(pdev, &pltfm_data->pdata,
 				sizeof(struct dwcmshc_priv));
-- 
2.43.0