linux-kernel - [PATCH 4.10 26/63] amd-xgbe: Dont overwrite SFP PHY mod

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Date:   Mon, 20 Mar 2017 18:51:51 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Tom Lendacky <thomas.lendacky@....com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.10 26/63] amd-xgbe: Dont overwrite SFP PHY mod_absent settings

4.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "Lendacky, Thomas" <Thomas.Lendacky@....com>


[ Upstream commit 2697ea5a859b83ca49511dcfd98daf42584eb3cf ]

If an SFP module is not present, xgbe_phy_sfp_phy_settings() should
return after applying the default settings. Currently there is no return
statement and the default settings are overwritten.

Signed-off-by: Tom Lendacky <thomas.lendacky@....com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
@@ -716,6 +716,8 @@ static void xgbe_phy_sfp_phy_settings(st
 		pdata->phy.duplex = DUPLEX_UNKNOWN;
 		pdata->phy.autoneg = AUTONEG_ENABLE;
 		pdata->phy.advertising = pdata->phy.supported;
+
+		return;
 	}
 
 	pdata->phy.advertising &= ~ADVERTISED_Autoneg;