[PATCH] stmmac: dwmac-loongson:Fix missing return value

Add the return value when phy_mode < 0.

Signed-off-by: zhaoxiao <redacted>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
index 4c9a37dd0d3f..ecf759ee1c9f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c

@@ -109,8 +109,10 @@ static int loongson_dwmac_probe(struct pci_dev *pdev, const struct pci_device_id
 		plat->bus_id = pci_dev_id(pdev);
 
 	phy_mode = device_get_phy_mode(&pdev->dev);
-	if (phy_mode < 0)
+	if (phy_mode < 0) {
 		dev_err(&pdev->dev, "phy_mode not found\n");
+		return phy_mode;
+	}
 
 	plat->phy_interface = phy_mode;
 	plat->interface = PHY_INTERFACE_MODE_GMII;

-- 
2.20.1

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Mon,  6 Sep 2021 15:21:07 +0800 you wrote:

Add the return value when phy_mode < 0.

Signed-off-by: zhaoxiao <redacted>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Here is the summary with links:
  - stmmac: dwmac-loongson:Fix missing return value
    https://git.kernel.org/netdev/net/c/5289de5929d1

You are awesome, thank you!
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