Hello,
On 09/15/2010 10:55 AM, han jonghun wrote:
Hello,
In vb2_cma_put if buf->refcount is 0, cma_free is called.
But vb2_cma_put is usually called from munmap.
In my opinion cma_free should be called from VIDIOC_REQBUFS(0) not munmap.
cma_free has to be called from both, since we do not always call
VIDIOC_REQBUFS(0) after finishing. If an application just closes
the file descriptor (or even dies), we need a way to clean up the
memory.
--
Best regards,
Pawel Osciak
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