diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index cea7fc1716ca..c5ec4d50acd1 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -143,6 +143,7 @@ #include <linux/net_namespace.h> #include <linux/indirect_call_wrapper.h> #include <net/devlink.h> +#include <linux/pm_runtime.h> #include "net-sysfs.h" @@ -1492,8 +1493,13 @@ static int __dev_open(struct net_device *dev, struct netlink_ext_ack *extack) ASSERT_RTNL(); - if (!netif_device_present(dev)) - return -ENODEV; + if (!netif_device_present(dev)) { + /* may be detached because parent is runtime-suspended */ + if (dev->dev.parent) + pm_runtime_resume(dev->dev.parent); + if (!netif_device_present(dev)) + return -ENODEV; + } /* Block netpoll from trying to do any rx path servicing. * If we don't do this there is a chance ndo_poll_controller |