diff options
| author | Steve Wise | 2007-11-26 11:28:44 -0600 |
|---|---|---|
| committer | Roland Dreier | 2008-01-25 14:15:26 -0800 |
| commit | 7f049f2f4259e4a5c213720df1ce0c2ca095641a (patch) | |
| tree | d59b130c0aa7f2600cb2c9dfd3d2b569c7bba601 /drivers | |
| parent | 908cf9a565348b5a6d765d120cb189a568ea4883 (diff) | |
RDMA/cxgb3: Hold rtnl_lock() around ethtool get_drvinfo call
Currently the call into cxgb3 to get the driver info is not serialized.
The iw_cxgb3 module needs to hold the rtnl_lock around the ethtool ops
call like dev_ioctl() does.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/cxgb3/iwch_provider.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index b5436ca92e68..69b1204e05f0 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -39,6 +39,7 @@ #include <linux/list.h> #include <linux/spinlock.h> #include <linux/ethtool.h> +#include <linux/rtnetlink.h> #include <asm/io.h> #include <asm/irq.h> @@ -1053,7 +1054,9 @@ static ssize_t show_fw_ver(struct class_device *cdev, char *buf) struct net_device *lldev = dev->rdev.t3cdev_p->lldev; PDBG("%s class dev 0x%p\n", __FUNCTION__, cdev); + rtnl_lock(); lldev->ethtool_ops->get_drvinfo(lldev, &info); + rtnl_unlock(); return sprintf(buf, "%s\n", info.fw_version); } @@ -1065,7 +1068,9 @@ static ssize_t show_hca(struct class_device *cdev, char *buf) struct net_device *lldev = dev->rdev.t3cdev_p->lldev; PDBG("%s class dev 0x%p\n", __FUNCTION__, cdev); + rtnl_lock(); lldev->ethtool_ops->get_drvinfo(lldev, &info); + rtnl_unlock(); return sprintf(buf, "%s\n", info.driver); } |