diff options
Diffstat (limited to 'drivers/char/ipmi')
| -rw-r--r-- | drivers/char/ipmi/ipmb_dev_int.c | 5 | ||||
| -rw-r--r-- | drivers/char/ipmi/ipmi_msghandler.c | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c index ee2bdc7ed0da..bc0564d87867 100644 --- a/drivers/char/ipmi/ipmb_dev_int.c +++ b/drivers/char/ipmi/ipmb_dev_int.c @@ -141,13 +141,14 @@ static ssize_t ipmb_write(struct file *file, const char __user *buf, u8 msg[MAX_MSG_LEN]; ssize_t ret; - if (count > sizeof(msg)) + if (!count || count > sizeof(msg)) return -EINVAL; if (copy_from_user(&msg, buf, count)) return -EFAULT; - if (count < msg[0]) + if (msg[IPMB_MSG_LEN_IDX] < IPMB_REQUEST_LEN_MIN || + count < (size_t)msg[IPMB_MSG_LEN_IDX] + 1) return -EINVAL; rq_sa = GET_7BIT_ADDR(msg[RQ_SA_8BIT_IDX]); diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 51f76d755f98..0247079db185 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -1393,6 +1393,7 @@ static void _ipmi_destroy_user(struct ipmi_user *user) } } mutex_unlock(&intf->cmd_rcvrs_mutex); + synchronize_rcu(); while (rcvrs) { rcvr = rcvrs; rcvrs = rcvr->next; @@ -3740,6 +3741,7 @@ int ipmi_add_smi(struct module *owner, sysfs_attr_init(&intf->maintenance_mode_devattr.attr); rv = device_create_file(intf->si_dev, &intf->maintenance_mode_devattr); if (rv) { + device_remove_file(intf->si_dev, &intf->nr_msgs_devattr); device_remove_file(intf->si_dev, &intf->nr_users_devattr); goto out_err_bmc_reg; } @@ -3757,12 +3759,14 @@ int ipmi_add_smi(struct module *owner, out_err_bmc_reg: ipmi_bmc_unregister(intf); out_err_started: + intf->in_shutdown = true; if (intf->handlers->shutdown) intf->handlers->shutdown(intf->send_info); out_err: list_del(&intf->link); mutex_unlock(&ipmi_interfaces_mutex); mutex_unlock(&smi_watchers_mutex); + cancel_work_sync(&intf->smi_work); kref_put(&intf->refcount, intf_free); return rv; |