linux-kernel - [PATCH net-next v2 08/15] net: dsa: mt7530: return mt7530_setup_mdio & mt7531_setup

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Date: Mon, 22 Apr 2024 10:15:15 +0300
From: Arınç ÜNAL via B4 Relay <devnull+arinc.unal.arinc9.com@...nel.org>
To: Daniel Golle <daniel@...rotopia.org>, DENG Qingfang <dqfext@...il.com>, 
 Sean Wang <sean.wang@...iatek.com>, Andrew Lunn <andrew@...n.ch>, 
 Florian Fainelli <f.fainelli@...il.com>, 
 Vladimir Oltean <olteanv@...il.com>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Russell King <linux@...linux.org.uk>
Cc: Bartel Eerdekens <bartel.eerdekens@...stell8.be>, 
 mithat.guner@...ont.com, erkin.bozoglu@...ont.com, netdev@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, 
 Arınç ÜNAL <arinc.unal@...nc9.com>
Subject: [PATCH net-next v2 08/15] net: dsa: mt7530: return
 mt7530_setup_mdio & mt7531_setup_common on error

From: Arınç ÜNAL <arinc.unal@...nc9.com>

The mt7530_setup_mdio() and mt7531_setup_common() functions should be
checked for errors. Return if the functions return a non-zero value.

Signed-off-by: Arınç ÜNAL <arinc.unal@...nc9.com>
---
 drivers/net/dsa/mt7530.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 83436723cb16..4e9aa78ca3d0 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -2667,7 +2667,9 @@ mt7531_setup(struct dsa_switch *ds)
 					 0);
 	}

-	mt7531_setup_common(ds);
+	ret = mt7531_setup_common(ds);
+	if (ret)
+		return ret;

 	/* Setup VLAN ID 0 for VLAN-unaware bridges */
 	ret = mt7530_setup_vlan0(priv);
@@ -3020,6 +3022,8 @@ mt753x_setup(struct dsa_switch *ds)
 	ret = mt7530_setup_mdio(priv);
 	if (ret && priv->irq)
 		mt7530_free_irq_common(priv);
+	if (ret)
+		return ret;

 	/* Initialise the PCS devices */
 	for (i = 0; i < priv->ds->num_ports; i++) {

-- 
2.40.1