Thread (4 messages) read the whole thread 4 messages, 4 authors, 2026-02-11
STALE172d

[PATCH net-next] net: stmmac: qcom-ethqos: fix qcom_ethqos_serdes_powerup()

From: Russell King (Oracle) <hidden>
Date: 2026-02-06 17:19:39
Also in: linux-arm-kernel, linux-arm-msm
Subsystem: networking drivers, qualcomm ethqos ethernet driver, stmmac ethernet driver, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Mohd Ayaan Anwar, Maxime Chevallier, Linus Torvalds

Add cleanup for failure paths in qcom_ethqos_serdes_powerup(). This
was missing calling phy_exit() and phy_power_off() at appropriate
failure points.

Signed-off-by: Russell King (Oracle) <redacted>
---
 .../net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c  | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 869f924f3cde..af8204c0e188 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -659,10 +659,18 @@ static int qcom_ethqos_serdes_powerup(struct net_device *ndev, void *priv)
 		return ret;
 
 	ret = phy_power_on(ethqos->serdes_phy);
-	if (ret)
+	if (ret) {
+		phy_exit(ethqos->serdes_phy);
 		return ret;
+	}
 
-	return phy_set_speed(ethqos->serdes_phy, ethqos->serdes_speed);
+	ret = phy_set_speed(ethqos->serdes_phy, ethqos->serdes_speed);
+	if (ret) {
+		phy_power_off(ethqos->serdes_phy);
+		phy_exit(ethqos->serdes_phy);
+	}
+
+	return ret;
 }
 
 static void qcom_ethqos_serdes_powerdown(struct net_device *ndev, void *priv)
-- 
2.47.3
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