diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 9e7f8af12f8f..5d0ee0f0cb0e 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -749,6 +749,8 @@ static struct nfsd4_session *alloc_init_session(struct svc_rqst *rqstp, struct n
 	 */
 	slotsize = nfsd4_sanitize_slot_size(fchan->maxresp_cached);
 	numslots = nfsd4_get_drc_mem(slotsize, fchan->maxreqs);
+	if (numslots < 1)
+		return NULL;
 
 	new = alloc_session(slotsize, numslots);
 	if (!new) {