From 42daaf8760f76ce37773b531fc42e97c800a09e2 Mon Sep 17 00:00:00 2001
From: Hyesoo Yu <hyesoo.yu@samsung.com>
Date: Thu, 24 Dec 2020 15:52:38 +0900
Subject: [PATCH] ANDROID: dma-buf: heap: export dma_heap_put

dma_heap_put() symbols is needed for vendor loadable modules
to drop reference count after dma_heap_find().

Bug: 176262479
Signed-off-by: Hyesoo Yu <hyesoo.yu@samsung.com>
Change-Id: I180698371d16a9e14ed648687e77a68dc3afc951
Signed-off-by: Hridya Valsaraju <hridya@google.com>
(cherry picked from commit c87cc4b2e554a670e00bdf08ad74e7596167d1c8)
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
---
 drivers/dma-buf/dma-heap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
index c48ac45e4d6c..0699c4b70b5c 100644
--- a/drivers/dma-buf/dma-heap.c
+++ b/drivers/dma-buf/dma-heap.c
@@ -265,6 +265,7 @@ void dma_heap_put(struct dma_heap *h)
 	kref_put(&h->refcount, dma_heap_release);
 	mutex_unlock(&heap_list_lock);
 }
+EXPORT_SYMBOL_GPL(dma_heap_put);
 
 /**
  * dma_heap_get_dev() - get device struct for the heap