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Commit 2b4444ff authored by Sandeep Patil's avatar Sandeep Patil
Browse files

staging: ion: export ion_free() for ion_heaps. 



ion_free() is a generic function needed to release
an ion buffer back to the heap. So, export it for the
heap module.

Bug: 140294230
Test: ion-unit-tests

Change-Id: Iaa467ab3df18fa219412dd9f5913cd022a93455d
Signed-off-by: default avatarSandeep Patil <sspatil@google.com>
parent 19a4939e

drivers/staging/android/ion/ion.c

+1 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ int ion_free(struct ion_buffer *buffer) 
{

	return ion_buffer_destroy(internal_dev, buffer);

}

EXPORT_SYMBOL_GPL(ion_free);



static int ion_alloc_fd(size_t len, unsigned int heap_id_mask,

			unsigned int flags)

include/linux/ion.h

+12 −0
Original line number Diff line number Diff line
@@ -293,6 +293,13 @@ int ion_buffer_zero(struct ion_buffer *buffer); 
struct dma_buf *ion_alloc(size_t len, unsigned int heap_id_mask,

			  unsigned int flags);



/**

 * ion_free - Releases the ion buffer.

 *

 * @buffer:             ion buffer to be released

 */

int ion_free(struct ion_buffer *buffer);



#else



static inline int __ion_device_add_heap(struct ion_heap *heap,
@@ -357,5 +364,10 @@ static inline struct dma_buf *ion_alloc(size_t len, unsigned int heap_id_mask, 
	return ERR_PTR(-ENOMEM);

}



static inline int ion_free(struct ion_buffer *buffer)

{

	return 0;

}



#endif /* CONFIG_ION */

#endif /* _ION_KERNEL_H */