Patch "Drivers: hv: vmbus: Fix a bug in the error path in vmbus_open()" has been added to the 3.19-stable tree

This is a note to let you know that I've just added the patch titled

Drivers: hv: vmbus: Fix a bug in the error path in vmbus_open()

to the 3.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drivers-hv-vmbus-fix-a-bug-in-the-error-path-in-vmbus_open.patch
and it can be found in the queue-3.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: "K. Y. Srinivasan" <[email protected]>
Date: Fri, 27 Feb 2015 11:26:04 -0800
Subject: Drivers: hv: vmbus: Fix a bug in the error path in vmbus_open()

From: "K. Y. Srinivasan" <[email protected]>

commit 40384e4bbeb9f2651fe9bffc0062d9f31ef625bf upstream.

Correctly rollback state if the failure occurs after we have handed over the ownership of the buffer to the host.

---
 drivers/hv/channel.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

@@ -135,7 +135,7 @@ int vmbus_open(struct vmbus_channel *new
 			   GFP_KERNEL);
 	if (!open_info) {
 		err = -ENOMEM;
-		goto error0;
+		goto error_gpadl;
 	}
 
 	init_completion(&open_info->waitevent);

@@ -151,7 +151,7 @@ int vmbus_open(struct vmbus_channel *new
 
 	if (userdatalen > MAX_USER_DEFINED_BYTES) {
 		err = -EINVAL;
-		goto error0;
+		goto error_gpadl;
 	}
 
 	if (userdatalen)

@@ -195,6 +195,9 @@ error1:
 	list_del(&open_info->msglistentry);
 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);
 
+error_gpadl:
+	vmbus_teardown_gpadl(newchannel, newchannel->ringbuffer_gpadlhandle);
+
 error0:
 	free_pages((unsigned long)out,
 		get_order(send_ringbuffer_size + recv_ringbuffer_size));

Patches currently in stable-queue which might be from [email protected] are

queue-3.19/drivers-hv-vmbus-fix-a-bug-in-the-error-path-in-vmbus_open.patch queue-3.19/scsi-storvsc-fix-a-bug-in-copy_from_bounce_buffer.patch