Windows: Prevent MDL leak on Cc*Mdl* failure
If CcMdlRead or CcPrepareMdlWrite fail, check the IoStatus.Information
field to see if any MDL pages have been locked. If the Information
value is greater than zero, complete the Mdl operation to unlock the
pages.
Change-Id: Icb44e74e25b46c7976f3f418410364a90a723d91
Reviewed-on: http://gerrit.openafs.org/11442
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Peter Scott <pscott@kerneldrivers.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>