diff options
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 7903acc3403e..9c9da3a6c03a 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -177,19 +177,22 @@ static void percpu_channel_deq(void *arg) } -void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid) +static void vmbus_release_relid(u32 relid) { struct vmbus_channel_relid_released msg; - unsigned long flags; - struct vmbus_channel *primary_channel; memset(&msg, 0, sizeof(struct vmbus_channel_relid_released)); msg.child_relid = relid; msg.header.msgtype = CHANNELMSG_RELID_RELEASED; vmbus_post_msg(&msg, sizeof(struct vmbus_channel_relid_released)); +} - if (channel == NULL) - return; +void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid) +{ + unsigned long flags; + struct vmbus_channel *primary_channel; + + vmbus_release_relid(relid); BUG_ON(!channel->rescind); @@ -336,6 +339,8 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel) return; err_deq_chan: + vmbus_release_relid(newchannel->offermsg.child_relid); + spin_lock_irqsave(&vmbus_connection.channel_lock, flags); list_del(&newchannel->listentry); spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags); @@ -587,7 +592,11 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr) channel = relid2channel(rescind->child_relid); if (channel == NULL) { - hv_process_channel_removal(NULL, rescind->child_relid); + /* + * This is very impossible, because in + * vmbus_process_offer(), we have already invoked + * vmbus_release_relid() on error. + */ return; } |