diff options
| -rw-r--r-- | net/ethtool/netlink.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c index e628d17f595c..417aaf9ca219 100644 --- a/net/ethtool/netlink.c +++ b/net/ethtool/netlink.c @@ -2,6 +2,7 @@ #include <net/sock.h> #include <linux/ethtool_netlink.h> +#include <linux/pm_runtime.h> #include "netlink.h" static struct genl_family ethtool_genl_family; @@ -31,22 +32,40 @@ const struct nla_policy ethnl_header_policy_stats[] = { int ethnl_ops_begin(struct net_device *dev) { + int ret; + if (!dev) return 0; - if (!netif_device_present(dev)) - return -ENODEV; + if (dev->dev.parent) + pm_runtime_get_sync(dev->dev.parent); - if (dev->ethtool_ops->begin) - return dev->ethtool_ops->begin(dev); - else - return 0; + if (!netif_device_present(dev)) { + ret = -ENODEV; + goto err; + } + + if (dev->ethtool_ops->begin) { + ret = dev->ethtool_ops->begin(dev); + if (ret) + goto err; + } + + return 0; +err: + if (dev->dev.parent) + pm_runtime_put(dev->dev.parent); + + return ret; } void ethnl_ops_complete(struct net_device *dev) { if (dev && dev->ethtool_ops->complete) dev->ethtool_ops->complete(dev); + + if (dev->dev.parent) + pm_runtime_put(dev->dev.parent); } /** |