netdev - [PATCH] of_net: fix of_get_mac_address retval if compiled without CONFIG

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Message-Id: <1558268324-5596-1-git-send-email-ynezz@true.cz>
Date:   Sun, 19 May 2019 14:18:44 +0200
From:   Petr Štetiar <ynezz@...e.cz>
To:     Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>
Cc:     Petr Štetiar <ynezz@...e.cz>,
        Mirko Lindner <mlindner@...vell.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] of_net: fix of_get_mac_address retval if compiled without CONFIG_OF

of_get_mac_address prior to commit d01f449c008a ("of_net: add NVMEM
support to of_get_mac_address") could return only valid pointer or NULL,
after this change it could return only valid pointer or ERR_PTR encoded
error value, but I've forget to change the return value of
of_get_mac_address in case where the kernel is compiled without
CONFIG_OF, so I'm doing so now.

Cc: Mirko Lindner <mlindner@...vell.com>
Cc: Stephen Hemminger <stephen@...workplumber.org>
Fixes: d01f449c008a ("of_net: add NVMEM support to of_get_mac_address")
Reported-by: Octavio Alvarez <octallk1@...arezp.org>
Signed-off-by: Petr Štetiar <ynezz@...e.cz>
---
 include/linux/of_net.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/of_net.h b/include/linux/of_net.h
index 9cd72aab76fe..0f0346e6829c 100644
--- a/include/linux/of_net.h
+++ b/include/linux/of_net.h
@@ -22,7 +22,7 @@ static inline int of_get_phy_mode(struct device_node *np)
 
 static inline const void *of_get_mac_address(struct device_node *np)
 {
-	return NULL;
+	return ERR_PTR(-ENODEV);
 }
 
 static inline struct net_device *of_find_net_device_by_node(struct device_node *np)
-- 
1.9.1