diff options
Diffstat (limited to 'include/linux/ion.h')
-rw-r--r-- | include/linux/ion.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/ion.h b/include/linux/ion.h index 111982f48dc..aed8349279e 100644 --- a/include/linux/ion.h +++ b/include/linux/ion.h @@ -186,9 +186,14 @@ void ion_unmap_dma(struct ion_client *client, struct ion_handle *handle); * @client: the client * @handle: the handle to share * - * Given a handle, return a buffer which exists in a global name - * space and can be passed to other clients. Should be passed into ion_import + * Given a handle, return a buffer, which exists in a global name + * space, and can be passed to other clients. Should be passed into ion_import * to obtain a new handle for this buffer. + * + * NOTE: This function does do not an extra reference. The burden is on the + * caller to make sure the buffer doesn't go away while it's being passed to + * another client. That is, ion_free should not be called on this handle until + * the buffer has been imported into the other client. */ struct ion_buffer *ion_share(struct ion_client *client, struct ion_handle *handle); |