linux-kernel - [PATCH 14/15] usb: typec: tcpm/tcpci_maxim: convert to dev_err

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Message-Id: <20240710-tcpc-cleanup-v1-14-0ec1f41f4263@linaro.org>
Date: Wed, 10 Jul 2024 11:36:21 +0100
From: André Draszik <andre.draszik@...aro.org>
To: Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Peter Griffin <peter.griffin@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Will McVicker <willmcvicker@...gle.com>, 
 Badhri Jagan Sridharan <badhri@...gle.com>, kernel-team@...roid.com, 
 linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH 14/15] usb: typec: tcpm/tcpci_maxim: convert to
 dev_err_probe()

dev_err_probe() exists as a useful helper ensuring standardized
error messages during .probe() and using it also helps to make
the code more legible.

Use it.

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
 drivers/usb/typec/tcpm/tcpci_maxim_core.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/typec/tcpm/tcpci_maxim_core.c b/drivers/usb/typec/tcpm/tcpci_maxim_core.c
index 5b5441db7047..ee3e86797f17 100644
--- a/drivers/usb/typec/tcpm/tcpci_maxim_core.c
+++ b/drivers/usb/typec/tcpm/tcpci_maxim_core.c
@@ -484,17 +484,17 @@ static int max_tcpci_probe(struct i2c_client *client)
 
 	chip->client = client;
 	chip->data.regmap = devm_regmap_init_i2c(client, &max_tcpci_regmap_config);
-	if (IS_ERR(chip->data.regmap)) {
-		dev_err(&client->dev, "Regmap init failed\n");
-		return PTR_ERR(chip->data.regmap);
-	}
+	if (IS_ERR(chip->data.regmap))
+		return dev_err_probe(&client->dev, PTR_ERR(chip->data.regmap),
+				     "Regmap init failed\n");
 
 	chip->dev = &client->dev;
 	i2c_set_clientdata(client, chip);
 
 	ret = max_tcpci_read8(chip, TCPC_POWER_STATUS, &power_status);
 	if (ret < 0)
-		return ret;
+		return dev_err_probe(&client->dev, ret,
+				     "Failed to read TCPC_POWER_STATUS\n");
 
 	/* Chip level tcpci callbacks */
 	chip->data.set_vbus = max_tcpci_set_vbus;
@@ -511,10 +511,10 @@ static int max_tcpci_probe(struct i2c_client *client)
 
 	max_tcpci_init_regs(chip);
 	chip->tcpci = tcpci_register_port(chip->dev, &chip->data);
-	if (IS_ERR(chip->tcpci)) {
-		dev_err(&client->dev, "TCPCI port registration failed\n");
-		return PTR_ERR(chip->tcpci);
-	}
+	if (IS_ERR(chip->tcpci))
+		return dev_err_probe(&client->dev, PTR_ERR(chip->tcpci),
+				     "TCPCI port registration failed\n");
+
 	chip->port = tcpci_get_tcpm_port(chip->tcpci);
 	ret = max_tcpci_init_alert(chip, client);
 	if (ret < 0)
@@ -526,7 +526,8 @@ static int max_tcpci_probe(struct i2c_client *client)
 unreg_port:
 	tcpci_unregister_port(chip->tcpci);
 
-	return ret;
+	return dev_err_probe(&client->dev, ret,
+			     "Maxim TCPCI driver initialization failed\n");
 }
 
 static void max_tcpci_remove(struct i2c_client *client)

-- 
2.45.2.803.g4e1b14247a-goog