[PATCH 008 of 9] knfsd: nfsd4: acls: simplify nfs4_acl_nfsv4_to_posix interface

[NeilBrown <neilb@suse.de>]

From: J.Bruce Fields <bfields@fieldses.org>

There's no need to handle the case where the caller passes in null for pacl
or dpacl; no caller does that, because it would be a dumb thing to do.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>

### Diffstat output
 ./fs/nfsd/nfs4acl.c |   48 +++++++++++++++++++++---------------------------
 1 file changed, 21 insertions(+), 27 deletions(-)

diff .prev/fs/nfsd/nfs4acl.c ./fs/nfsd/nfs4acl.c
--- .prev/fs/nfsd/nfs4acl.c	2006-09-04 17:26:00.000000000 +1000
+++ ./fs/nfsd/nfs4acl.c	2006-09-04 17:27:48.000000000 +1000
@@ -360,39 +360,33 @@ nfs4_acl_nfsv4_to_posix(struct nfs4_acl 
 	if (error < 0)
 		goto out_acl;
 
-	if (pacl != NULL) {
-		if (acl->naces == 0) {
-			error = -ENODATA;
-			goto try_dpacl;
-		}
-
-		*pacl = _nfsv4_to_posix_one(acl, flags);
-		if (IS_ERR(*pacl)) {
-			error = PTR_ERR(*pacl);
-			*pacl = NULL;
-			goto out_acl;
-		}
+	if (acl->naces == 0) {
+		error = -ENODATA;
+		goto try_dpacl;
 	}
 
+	*pacl = _nfsv4_to_posix_one(acl, flags);
+	if (IS_ERR(*pacl)) {
+		error = PTR_ERR(*pacl);
+		*pacl = NULL;
+		goto out_acl;
+	}
 try_dpacl:
-	if (dpacl != NULL) {
-		if (dacl->naces == 0) {
-			if (pacl == NULL || *pacl == NULL)
-				error = -ENODATA;
-			goto out_acl;
-		}
-
-		error = 0;
-		*dpacl = _nfsv4_to_posix_one(dacl, flags);
-		if (IS_ERR(*dpacl)) {
-			error = PTR_ERR(*dpacl);
-			*dpacl = NULL;
-			goto out_acl;
-		}
+	if (dacl->naces == 0) {
+		if (pacl == NULL || *pacl == NULL)
+			error = -ENODATA;
+		goto out_acl;
 	}
 
+	error = 0;
+	*dpacl = _nfsv4_to_posix_one(dacl, flags);
+	if (IS_ERR(*dpacl)) {
+		error = PTR_ERR(*dpacl);
+		*dpacl = NULL;
+		goto out_acl;
+	}
 out_acl:
-	if (error && pacl) {
+	if (error) {
 		posix_acl_release(*pacl);
 		*pacl = NULL;
 	}