diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index 6396d6b06a3a..9355fbe5f51e 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -53,6 +53,8 @@ unsigned long *crst_table_alloc(struct mm_struct *mm)
 
 void crst_table_free(struct mm_struct *mm, unsigned long *table)
 {
+	if (!table)
+		return;
 	pagetable_free(virt_to_ptdesc(table));
 }
 
@@ -500,6 +502,8 @@ static unsigned long *base_crst_alloc(unsigned long val)
 
 static void base_crst_free(unsigned long *table)
 {
+	if (!table)
+		return;
 	pagetable_free(virt_to_ptdesc(table));
 }