--- zzzz-none-000/linux-3.10.107/arch/unicore32/mm/pgd.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/unicore32/mm/pgd.c	2021-02-04 17:41:59.000000000 +0000
@@ -69,6 +69,7 @@
 
 no_pte:
 	pmd_free(mm, new_pmd);
+	mm_dec_nr_pmds(mm);
 no_pmd:
 	free_pages((unsigned long)new_pgd, 0);
 no_pgd:
@@ -96,7 +97,9 @@
 	pte = pmd_pgtable(*pmd);
 	pmd_clear(pmd);
 	pte_free(mm, pte);
+	atomic_long_dec(&mm->nr_ptes);
 	pmd_free(mm, pmd);
+	mm_dec_nr_pmds(mm);
 free:
 	free_pages((unsigned long) pgd, 0);
 }