[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <21a1abb0-300f-ccae-56da-16f016c4fff2@gmail.com>
Date: Thu, 5 Aug 2021 21:08:22 +0200
From: Heiner Kallweit <hkallweit1@...il.com>
To: Jakub Kicinski <kuba@...nel.org>,
David Miller <davem@...emloft.net>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
Julian Wiedmann <jwi@...ux.ibm.com>
Subject: [PATCH net-next] ethtool: return error from ethnl_ops_begin if dev is
NULL
Julian reported that after d43c65b05b84 Coverity complains about a
missing check whether dev is NULL in ethnl_ops_complete().
There doesn't seem to be any valid case where dev could be NULL when
calling ethnl_ops_begin(), therefore return an error if dev is NULL.
Fixes: d43c65b05b84 ("ethtool: runtime-resume netdev parent in ethnl_ops_begin")
Reported-by: Julian Wiedmann <jwi@...ux.ibm.com>
Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
net/ethtool/netlink.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c
index 417aaf9ca..fe8bf2b3c 100644
--- a/net/ethtool/netlink.c
+++ b/net/ethtool/netlink.c
@@ -35,7 +35,7 @@ int ethnl_ops_begin(struct net_device *dev)
int ret;
if (!dev)
- return 0;
+ return -ENODEV;
if (dev->dev.parent)
pm_runtime_get_sync(dev->dev.parent);
@@ -61,7 +61,7 @@ int ethnl_ops_begin(struct net_device *dev)
void ethnl_ops_complete(struct net_device *dev)
{
- if (dev && dev->ethtool_ops->complete)
+ if (dev->ethtool_ops->complete)
dev->ethtool_ops->complete(dev);
if (dev->dev.parent)
--
2.32.0
Powered by blists - more mailing lists