[PATCH] s5p-mfc: encoder could free buffers

[ayaka <ayaka@soulik.info>]

[PATCH] s5p-mfc: encoder could free buffers

The patch is necessary or the buffers could be freeed but
it would break the state of encoder in s5p-mfc. It is also need
by some application which would detect the buffer allocation
way, like gstreamer.
---
drivers/media/platform/s5p-mfc/s5p_mfc_enc.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
index d26b248..1a7518f 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
@@ -1166,6 +1166,10 @@ static int vidioc_reqbufs(struct file *file, void
*priv,
mfc_err("error in vb2_reqbufs() for E(D)\n");
return ret;
}
+ if (reqbufs->count == 0) {
+ mfc_debug(2, "Freeing buffers\n");
+ return ret;
+ }
ctx->capture_state = QUEUE_BUFS_REQUESTED;

ret = s5p_mfc_hw_call(ctx->dev->mfc_ops,
@@ -1200,6 +1204,10 @@ static int vidioc_reqbufs(struct file *file, void
*priv,
mfc_err("error in vb2_reqbufs() for E(S)\n");
return ret;
}
+ if (reqbufs->count == 0) {
+ mfc_debug(2, "Freeing buffers\n");
+ return ret;
+ }
ctx->output_state = QUEUE_BUFS_REQUESTED;
} else {
mfc_err("invalid buf type\n");
-- 
1.9.1