linux-kernel - [PATCH 4/5] media: mediatek: vcodec: Setting lat buf to lat

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Date:   Sat, 12 Nov 2022 17:41:43 +0800
From:   Yunfei Dong <yunfei.dong@...iatek.com>
To:     Yunfei Dong <yunfei.dong@...iatek.com>,
        Chen-Yu Tsai <wenst@...omium.org>,
        Nicolas Dufresne <nicolas@...fresne.ca>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Tiffany Lin <tiffany.lin@...iatek.com>
CC:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        George Sun <george.sun@...iatek.com>,
        Xiaoyong Lu <xiaoyong.lu@...iatek.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Steve Cho <stevecho@...omium.org>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH 4/5] media: mediatek: vcodec: Setting lat buf to lat_list when lat decode error

Need to set lat buf to lat_list when lat decode error, or lat buffer will lost.

Fixes: 5d418351ca8f ("media: mediatek: vcodec: support stateless VP9 decoding")
Signed-off-by: Yunfei Dong <yunfei.dong@...iatek.com>
---
 .../mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c    | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
index fb1c36a3592d..cbb6728b8a40 100644
--- a/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_req_lat_if.c
@@ -2073,21 +2073,23 @@ static int vdec_vp9_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 		return -EBUSY;
 	}
 	pfc = (struct vdec_vp9_slice_pfc *)lat_buf->private_data;
-	if (!pfc)
-		return -EINVAL;
+	if (!pfc) {
+		ret = -EINVAL;
+		goto err_free_fb_out;
+	}
 	vsi = &pfc->vsi;
 
 	ret = vdec_vp9_slice_setup_lat(instance, bs, lat_buf, pfc);
 	if (ret) {
 		mtk_vcodec_err(instance, "Failed to setup VP9 lat ret %d\n", ret);
-		return ret;
+		goto err_free_fb_out;
 	}
 	vdec_vp9_slice_vsi_to_remote(vsi, instance->vsi);
 
 	ret = vpu_dec_start(&instance->vpu, NULL, 0);
 	if (ret) {
 		mtk_vcodec_err(instance, "Failed to dec VP9 ret %d\n", ret);
-		return ret;
+		goto err_free_fb_out;
 	}
 
 	if (instance->irq) {
@@ -2107,7 +2109,7 @@ static int vdec_vp9_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 	/* LAT trans full, no more UBE or decode timeout */
 	if (ret) {
 		mtk_vcodec_err(instance, "VP9 decode error: %d\n", ret);
-		return ret;
+		goto err_free_fb_out;
 	}
 
 	mtk_vcodec_debug(instance, "lat dma addr: 0x%lx 0x%lx\n",
@@ -2120,6 +2122,9 @@ static int vdec_vp9_slice_lat_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 	vdec_msg_queue_qbuf(&ctx->dev->msg_queue_core_ctx, lat_buf);
 
 	return 0;
+err_free_fb_out:
+	vdec_msg_queue_qbuf(&ctx->msg_queue.lat_ctx, lat_buf);
+	return ret;
 }
 
 static int vdec_vp9_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
-- 
2.18.0