From: Jeff Layton jlayton@kernel.org
[ Upstream commit 1f0001d43d0c0ac2a19a34a914f6595ad97cbc1d ]
At first, I thought this might be a source of nfsd_file overputs, but the current callers seem to avoid an extra put when nfsd4_verify_copy returns an error.
Still, it's "bad form" to leave the pointers filled out when we don't have a reference to them anymore, and that might lead to bugs later. Zero them out as a defensive coding measure.
Signed-off-by: Jeff Layton jlayton@kernel.org Signed-off-by: Chuck Lever chuck.lever@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfsd/nfs4proc.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 735ee8a798705..f82cfe843b99b 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1075,8 +1075,10 @@ nfsd4_verify_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return status; out_put_dst: nfsd_file_put(*dst); + *dst = NULL; out_put_src: nfsd_file_put(*src); + *src = NULL; goto out; }