thermal/drivers/brcmstb_thermal: Simplify with dev_err_probe()

dev_err_probe() is used to log an error message during the probe process
of a device.

It can simplify the error path and unify a message template.

Using this helper is totally fine even if err is known to never
be -EPROBE_DEFER.

The benefit compared to a normal dev_err() is the standardized format
of the error code, it being emitted symbolically and the fact that
the error code is returned which allows more compact error paths.

Signed-off-by: Yan Zhen <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Daniel Lezcano <[e-mail]>

drivers/thermal/broadcom/brcmstb_thermal.c

···
 
 	thermal = devm_thermal_of_zone_register(&pdev->dev, 0, priv,
 						of_ops);
-	if (IS_ERR(thermal)) {
-		ret = PTR_ERR(thermal);
-		dev_err(&pdev->dev, "could not register sensor: %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(thermal))
+		return dev_err_probe(&pdev->dev, PTR_ERR(thermal),
+					"could not register sensor\n");
 
 	priv->thermal = thermal;
 
···
 						brcmstb_tmon_irq_thread,
 						IRQF_ONESHOT,
 						DRV_NAME, priv);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "could not request IRQ: %d\n", ret);
-			return ret;
-		}
+		if (ret < 0)
+			return dev_err_probe(&pdev->dev, ret,
+						"could not request IRQ\n");
 	}
 
 	dev_info(&pdev->dev, "registered AVS TMON of-sensor driver\n");