diff options
Diffstat (limited to 'net/ethtool')
| -rw-r--r-- | net/ethtool/ioctl.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index 82c610e9e6b2..939ccd106fe1 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -1285,6 +1285,7 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, struct netlink_ext_ack *extack = NULL; struct ethtool_rxnfc rx_rings; struct ethtool_rxfh rxfh; + bool locked = false; /* dev->ethtool->rss_lock taken */ u32 indir_bytes = 0; bool create = false; u8 *rss_config; @@ -1380,6 +1381,10 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, } } + if (rxfh.rss_context) { + mutex_lock(&dev->ethtool->rss_lock); + locked = true; + } if (create) { if (rxfh_dev.rss_delete) { ret = -EINVAL; @@ -1495,6 +1500,8 @@ static noinline_for_stack int ethtool_set_rxfh(struct net_device *dev, } out: + if (locked) + mutex_unlock(&dev->ethtool->rss_lock); kfree(rss_config); return ret; } |