diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c index d761c5947222..6fe963ba23e8 100644 --- a/drivers/net/dsa/qca8k.c +++ b/drivers/net/dsa/qca8k.c @@ -1128,6 +1128,7 @@ qca8k_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode, { struct qca8k_priv *priv = ds->priv; u32 reg, val; + int ret; switch (port) { case 0: /* 1st CPU port */ @@ -1198,7 +1199,9 @@ qca8k_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode, qca8k_write(priv, reg, QCA8K_PORT_PAD_SGMII_EN); /* Enable/disable SerDes auto-negotiation as necessary */ - qca8k_read(priv, QCA8K_REG_PWS, &val); + ret = qca8k_read(priv, QCA8K_REG_PWS, &val); + if (ret) + return; if (phylink_autoneg_inband(mode)) val &= ~QCA8K_PWS_SERDES_AEN_DIS; else @@ -1206,7 +1209,9 @@ qca8k_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode, qca8k_write(priv, QCA8K_REG_PWS, val); /* Configure the SGMII parameters */ - qca8k_read(priv, QCA8K_REG_SGMII_CTRL, &val); + ret = qca8k_read(priv, QCA8K_REG_SGMII_CTRL, &val); + if (ret) + return; val |= QCA8K_SGMII_EN_PLL | QCA8K_SGMII_EN_RX | QCA8K_SGMII_EN_TX | QCA8K_SGMII_EN_SD;