diff options
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_cm.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_cm.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index f87d104837dc..14b62f7472b4 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -511,7 +511,6 @@ static int ipoib_cm_rx_handler(struct ib_cm_id *cm_id, case IB_CM_REQ_RECEIVED: return ipoib_cm_req_handler(cm_id, event); case IB_CM_DREQ_RECEIVED: - p = cm_id->context; ib_send_cm_drep(cm_id, NULL, 0); /* Fall through */ case IB_CM_REJ_RECEIVED: @@ -1507,8 +1506,13 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr, if (test_bit(IPOIB_FLAG_GOING_DOWN, &priv->flags)) return -EPERM; - if (!rtnl_trylock()) + if (!mutex_trylock(&priv->sysfs_mutex)) + return restart_syscall(); + + if (!rtnl_trylock()) { + mutex_unlock(&priv->sysfs_mutex); return restart_syscall(); + } ret = ipoib_set_mode(dev, buf); @@ -1518,6 +1522,7 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr, */ if (ret != -EBUSY) rtnl_unlock(); + mutex_unlock(&priv->sysfs_mutex); return (!ret || ret == -EBUSY) ? count : ret; } |
