diff --git a/drivers/tee/optee/call.c b/drivers/tee/optee/call.c
index 2082e632adff98f8011ebba26fb8eec2e421e88b..78ac6fcef8a4199956050a1d14973c184ed53449 100644
--- a/drivers/tee/optee/call.c
+++ b/drivers/tee/optee/call.c
@@ -362,7 +362,7 @@ int optee_check_mem_type(unsigned long start, size_t num_pages)
 	 * Allow kernel address to register with OP-TEE as kernel
 	 * pages are configured as normal memory only.
 	 */
-	if (virt_addr_valid(start) || is_vmalloc_addr((void *)start))
+	if (virt_addr_valid((void *)start) || is_vmalloc_addr((void *)start))
 		return 0;
 
 	mmap_read_lock(mm);