5253 kmem_alloc/kmem_zalloc won't fail with KM_SLEEP
5254 getrbuf won't fail with KM_SLEEP

@@ -341,12 +341,10 @@
                  * to allocate.
                  */
                 if (nfs4_dss_buflen == 0)
                         return (set_errno(EINVAL));
                 nfs4_dss_bufp = kmem_alloc(nfs4_dss_buflen, KM_SLEEP);
-                if (nfs4_dss_bufp == NULL)
-                        return (set_errno(ENOMEM));
 
                 if (copyin(arg, nfs4_dss_bufp, nfs4_dss_buflen)) {
                         kmem_free(nfs4_dss_bufp, nfs4_dss_buflen);
                         return (set_errno(EFAULT));
                 }