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nfsd: fix fi_delegees leak when fi_had_conflict returns true

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Currently, nfs4_set_delegation takes a reference to an existing
delegation and then checks to see if there is a conflict. If there is
one, then it doesn't release that reference.

Change the code to take the reference after the check and only if there
is no conflict.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Jeff Layton 2014-12-13 09:11:39 -05:00 committed by J. Bruce Fields
parent b1940cd21c
commit 94ae1db226
1 changed files with 1 additions and 1 deletions
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2
fs/nfsd/nfs4state.c
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@ -3897,11 +3897,11 @@ nfs4_set_delegation(struct nfs4_client *clp, struct svc_fh *fh,
status = nfs4_setlease(dp);
goto out;
}
atomic_inc(&fp->fi_delegees);
if (fp->fi_had_conflict) {
status = -EAGAIN;
goto out_unlock;
}
atomic_inc(&fp->fi_delegees);
hash_delegation_locked(dp, fp);
status = 0;
out_unlock: