linux-kernel - [PATCH 03/12] net: pse-pd: tps23881: Simplify function returns by removing redundant checks

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Message-Id: <20241002-feature_poe_port_prio-v1-3-eb067b78d6cf@bootlin.com>
Date: Wed, 02 Oct 2024 18:14:14 +0200
From: Kory Maincent <kory.maincent@...tlin.com>
To: Oleksij Rempel <o.rempel@...gutronix.de>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Jonathan Corbet <corbet@....net>, Donald Hunter <donald.hunter@...il.com>
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 linux-kernel@...r.kernel.org, netdev@...r.kernel.org, 
 linux-doc@...r.kernel.org, Kyle Swenson <kyle.swenson@....tech>, 
 Dent Project <dentproject@...uxfoundation.org>, kernel@...gutronix.de, 
 Kory Maincent <kory.maincent@...tlin.com>
Subject: [PATCH 03/12] net: pse-pd: tps23881: Simplify function returns by
 removing redundant checks

From: Kory Maincent (Dent Project) <kory.maincent@...tlin.com>

Cleaned up several functions in tps23881 by removing redundant checks on
return values at the end of functions. These check has been removed, and
the return statement now directly returns the function result, reducing
the code's complexity and making it more concise.

Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
---
 drivers/net/pse-pd/tps23881.c | 26 +++++---------------------
 1 file changed, 5 insertions(+), 21 deletions(-)

diff --git a/drivers/net/pse-pd/tps23881.c b/drivers/net/pse-pd/tps23881.c
index 1a57c55f8577..fdf996f5d1f8 100644
--- a/drivers/net/pse-pd/tps23881.c
+++ b/drivers/net/pse-pd/tps23881.c
@@ -118,11 +118,7 @@ static int tps23881_pi_disable(struct pse_controller_dev *pcdev, int id)
 			val |= BIT(chan + 8);
 	}

-	ret = i2c_smbus_write_word_data(client, TPS23881_REG_PW_EN, val);
-	if (ret)
-		return ret;
-
-	return 0;
+	return i2c_smbus_write_word_data(client, TPS23881_REG_PW_EN, val);
 }

 static int tps23881_pi_is_enabled(struct pse_controller_dev *pcdev, int id)
@@ -488,7 +484,7 @@ tps23881_write_port_matrix(struct tps23881_priv *priv,
 	struct i2c_client *client = priv->client;
 	u8 pi_id, lgcl_chan, hw_chan;
 	u16 val = 0;
-	int i, ret;
+	int i;

 	for (i = 0; i < port_cnt; i++) {
 		pi_id = port_matrix[i].pi_id;
@@ -519,11 +515,7 @@ tps23881_write_port_matrix(struct tps23881_priv *priv,
 	}

 	/* Write hardware ports matrix */
-	ret = i2c_smbus_write_word_data(client, TPS23881_REG_PORT_MAP, val);
-	if (ret)
-		return ret;
-
-	return 0;
+	return i2c_smbus_write_word_data(client, TPS23881_REG_PORT_MAP, val);
 }

 static int
@@ -572,11 +564,7 @@ tps23881_set_ports_conf(struct tps23881_priv *priv,
 			val |= BIT(port_matrix[i].lgcl_chan[1]) |
 			       BIT(port_matrix[i].lgcl_chan[1] + 4);
 	}
-	ret = i2c_smbus_write_word_data(client, TPS23881_REG_DET_CLA_EN, val);
-	if (ret)
-		return ret;
-
-	return 0;
+	return i2c_smbus_write_word_data(client, TPS23881_REG_DET_CLA_EN, val);
 }

 static int
@@ -602,11 +590,7 @@ tps23881_set_ports_matrix(struct tps23881_priv *priv,
 	if (ret)
 		return ret;

-	ret = tps23881_set_ports_conf(priv, port_matrix);
-	if (ret)
-		return ret;
-
-	return 0;
+	return tps23881_set_ports_conf(priv, port_matrix);
 }

 static int tps23881_setup_pi_matrix(struct pse_controller_dev *pcdev)

-- 
2.34.1