tree d1ce6dee63e86173b97f27796d515f31d9fdc03d
parent 76c39d429d606d8f9b354ee2b1973b76c8331b1f
author K. Y. Srinivasan <kys@microsoft.com> 1314469893 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> 1314641130 -0700

Staging: hv: vmbus: Properly deal with de-registering channel callback

Ensure that we correctly handle racing invocations of the channel callback
when the channel is being closed. We do this using the channel's inbound_lock.
A side-effect of this strategy is that we avoid repeatedly picking up this lock
as we drain the inbound ring-buffer.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>