linux-kernel - [PATCH] venus: vdec: fix decoded data size

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Message-Id: <1530517447-29296-1-git-send-email-vgarodia@codeaurora.org>
Date:   Mon,  2 Jul 2018 13:14:07 +0530
From:   Vikash Garodia <vgarodia@...eaurora.org>
To:     stanimir.varbanov@...aro.org
Cc:     linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, acourbot@...omium.org,
        vgarodia@...eaurora.org
Subject: [PATCH] venus: vdec: fix decoded data size

Exisiting code returns the max of the decoded
size and buffer size. It turns out that buffer
size is always greater due to hardware alignment
requirement. As a result, payload size given to
client is incorrect. This change ensures that
the bytesused is assigned to actual payload size.

Change-Id: Ie6f3429c0cb23f682544748d181fa4fa63ca2e28
Signed-off-by: Vikash Garodia <vgarodia@...eaurora.org>
---
 drivers/media/platform/qcom/venus/vdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index d079aeb..ada1d2f 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -890,7 +890,7 @@ static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
 
 		vb = &vbuf->vb2_buf;
 		vb->planes[0].bytesused =
-			max_t(unsigned int, opb_sz, bytesused);
+			min_t(unsigned int, opb_sz, bytesused);
 		vb->planes[0].data_offset = data_offset;
 		vb->timestamp = timestamp_us * NSEC_PER_USEC;
 		vbuf->sequence = inst->sequence_cap++;
-- 
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