Windows: NotifyHardLink avoid null ptr reference

In AFSNotifyHardLink, if the TargetDirectoryCB out parameter is non-NULL
but pDirNode is NULL, do not attempt to increment the
DirOpenReferenceCount because doing so will trigger an exception.

Change-Id: I9d50e05aff9a4922113f814dd3d50e115725ecca
Reviewed-on: http://gerrit.openafs.org/9903
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
This commit is contained in:
Jeffrey Altman 2013-05-13 10:09:11 -04:00
parent 4a91ac6f83
commit 975c11cb35

View File

@ -2419,6 +2419,9 @@ AFSNotifyHardLink( IN AFSObjectInfoCB *ObjectInfo,
try_exit:
if ( TargetDirectoryCB != NULL)
{
if ( pDirNode != NULL)
{
lCount = InterlockedIncrement( &pDirNode->DirOpenReferenceCount);
@ -2431,6 +2434,7 @@ try_exit:
lCount));
ASSERT( lCount >= 0);
}
*TargetDirectoryCB = pDirNode;
}