Merge 3.15 bugfix for 3.16

diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index b206e6c..05c9b2f 100644 (file)
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -401,8 +401,10 @@ sort_pacl(struct posix_acl *pacl)
         * by uid/gid. */
        int i, j;
 
-       if (pacl->a_count <= 4)
-               return; /* no users or groups */
+       /* no users or groups */
+       if (!pacl || pacl->a_count <= 4)
+               return;
+
        i = 1;
        while (pacl->a_entries[i].e_tag == ACL_USER)
                i++;
@@ -529,13 +531,12 @@ posix_state_to_acl(struct posix_acl_state *state, unsigned int flags)
 
        /*
         * ACLs with no ACEs are treated differently in the inheritable
-        * and effective cases: when there are no inheritable ACEs, we
-        * set a zero-length default posix acl:
+        * and effective cases: when there are no inheritable ACEs,
+        * calls ->set_acl with a NULL ACL structure.
         */
-       if (state->empty && (flags & NFS4_ACL_TYPE_DEFAULT)) {
-               pacl = posix_acl_alloc(0, GFP_KERNEL);
-               return pacl ? pacl : ERR_PTR(-ENOMEM);
-       }
+       if (state->empty && (flags & NFS4_ACL_TYPE_DEFAULT))
+               return NULL;
+
        /*
         * When there are no effective ACEs, the following will end
         * up setting a 3-element effective posix ACL with all