On Mon, 26 Nov 2012, naveen yadav wrote:

Dear Alan,

Thanks for your reply ,

We check on 3.2.34 and 3.6.7 on X86 host machine. and result is same
without connecting Bluetooth device.
I am attaching log

Yes, very good.  But you still have to do what I mentioned in my
earlier email:

On Thu, Nov 22, 2012 at 9:08 PM, Alan Stern [off-list ref] wrote:

quoted

Now you need to find out what other code has changed urb->use_count and
fix it.

Alan Stern