3.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: "K. Y. Srinivasan" <k...@microsoft.com>
commit 565ce6422ff92f5af71e4d5a09f78215433b2695 upstream.
Rescind of subchannels were not being correctly handled. Fix the bug.
Signed-off-by: K. Y. Srinivasan <k...@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/hv/channel_mgmt.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -172,7 +172,8 @@ static void vmbus_process_rescind_offer(
struct vmbus_channel *primary_channel;
struct vmbus_channel_relid_released msg;
- vmbus_device_unregister(channel->device_obj);
+ if (channel->device_obj)
+ vmbus_device_unregister(channel->device_obj);
memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
msg.child_relid = channel->offermsg.child_relid;
msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
@@ -185,7 +186,7 @@ static void vmbus_process_rescind_offer(
} else {
primary_channel = channel->primary_channel;
spin_lock_irqsave(&primary_channel->sc_lock, flags);
- list_del(&channel->listentry);
+ list_del(&channel->sc_list);
spin_unlock_irqrestore(&primary_channel->sc_lock, flags);
}
free_channel(channel);
--
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