From aefa89d178e6dd83889b66d4e800d4d77363900b Mon Sep 17 00:00:00 2001 From: Prasad P Date: Wed, 24 Oct 2007 15:14:32 -0500 Subject: [PATCH] nfsd: Fix inconsistent assignment Dereferenced pointer "dentry" without checking and assigned to inode in the declaration. (We could just delete the NULL checks that follow instead, as we never get to the encode function in this particular case. But it takes a little detective work to verify that fact, so it's probably safer to leave the checks in place.) Cc: Steve French Signed-off-by: Prasad V Potluri Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs2acl.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c index 0e5fa11e6b..1c3b7654e9 100644 --- a/fs/nfsd/nfs2acl.c +++ b/fs/nfsd/nfs2acl.c @@ -221,12 +221,17 @@ static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p, struct nfsd3_getaclres *resp) { struct dentry *dentry = resp->fh.fh_dentry; - struct inode *inode = dentry->d_inode; + struct inode *inode; struct kvec *head = rqstp->rq_res.head; unsigned int base; int n; int w; + /* + * Since this is version 2, the check for nfserr in + * nfsd_dispatch actually ensures the following cannot happen. + * However, it seems fragile to depend on that. + */ if (dentry == NULL || dentry->d_inode == NULL) return 0; inode = dentry->d_inode; -- 2.39.5