Merge tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git...

Sasha writes:

Three fixes:

 1. Fix for a race condition in the hyper-v ringbuffer code by Kimberly
Brown.
 2. Fix to show monitor data only when monitor pages are actually
allocated, also by Kimberly Brown.
 3. Fix cpu reference counting in the vmbus code by Dexuan Cui.

* tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  Drivers: hv: vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup()
  Drivers: hv: vmbus: Fix race condition with new ring_buffer_info mutex
  Drivers: hv: vmbus: Set ring_info field to 0 and remove memset
  Drivers: hv: vmbus: Refactor chan->state if statement
  Drivers: hv: vmbus: Expose monitor data only when monitor pages are used