diff --git a/include/asm-blackfin/mmu_context.h b/include/asm-blackfin/mmu_context.h
index b5eb67596ad5..f55ec3c23a92 100644
--- a/include/asm-blackfin/mmu_context.h
+++ b/include/asm-blackfin/mmu_context.h
@@ -73,7 +73,7 @@ static inline void destroy_context(struct mm_struct *mm)
 	struct sram_list_struct *tmp;
 
 	if (current_l1_stack_save == mm->context.l1_stack_save)
-		current_l1_stack_save = 0;
+		current_l1_stack_save = NULL;
 	if (mm->context.l1_stack_save)
 		free_l1stack();