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-rw-r--r--drivers/tee/optee/call.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tee/optee/call.c b/drivers/tee/optee/call.c
index dbed3f480dc0..20b6fd7383c5 100644
--- a/drivers/tee/optee/call.c
+++ b/drivers/tee/optee/call.c
@@ -565,10 +565,10 @@ static int check_mem_type(unsigned long start, size_t num_pages)
if (virt_addr_valid(start))
return 0;
- down_read(&mm->mmap_sem);
+ mmap_read_lock(mm);
rc = __check_mem_type(find_vma(mm, start),
start + num_pages * PAGE_SIZE);
- up_read(&mm->mmap_sem);
+ mmap_read_unlock(mm);
return rc;
}