diff options
| -rw-r--r-- | net/ethtool/ioctl.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index b0fa2b00ad43..81fa36a4c9c4 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -24,6 +24,7 @@ #include <linux/rtnetlink.h> #include <linux/sched/signal.h> #include <linux/net.h> +#include <linux/pm_runtime.h> #include <net/devlink.h> #include <net/xdp_sock_drv.h> #include <net/flow_offload.h> @@ -2692,7 +2693,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr, void __user *useraddr) int rc; netdev_features_t old_features; - if (!dev || !netif_device_present(dev)) + if (!dev) return -ENODEV; if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd))) @@ -2748,10 +2749,18 @@ int dev_ethtool(struct net *net, struct ifreq *ifr, void __user *useraddr) return -EPERM; } + if (dev->dev.parent) + pm_runtime_get_sync(dev->dev.parent); + + if (!netif_device_present(dev)) { + rc = -ENODEV; + goto out; + } + if (dev->ethtool_ops->begin) { rc = dev->ethtool_ops->begin(dev); - if (rc < 0) - return rc; + if (rc < 0) + goto out; } old_features = dev->features; @@ -2970,6 +2979,9 @@ int dev_ethtool(struct net *net, struct ifreq *ifr, void __user *useraddr) if (old_features != dev->features) netdev_features_change(dev); +out: + if (dev->dev.parent) + pm_runtime_put(dev->dev.parent); return rc; } |