diff mbox series

[v2,4/4] media: mediatek: vcodec: Only free buffer VA that is not NULL

Message ID 20231221092226.1395427-4-fshao@chromium.org
State New
Headers
Series Improvement around mtk_vcodec_mem_free() logging and usage |

Commit Message

Fei Shao Dec. 21, 2023, 9:17 a.m. UTC 
  In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly
called only when the buffer to free exists, there are some instances
that didn't do the check and triggered warnings in practice.

We believe those checks were forgotten unintentionally. Add the checks
back to fix the warnings.

Signed-off-by: Fei Shao <fshao@chromium.org>
---
I had discussion with Yunfei, and he also thinks that the developers
just forgot to wrap mtk_vcodec_mem_free() with the checks back then.
We believe it's safe to add those checks.


 .../vcodec/decoder/vdec/vdec_av1_req_lat_if.c | 22 +++++++++++++------
 .../vcodec/encoder/venc/venc_h264_if.c        |  5 +++--
 2 files changed, 18 insertions(+), 9 deletions(-)

Comments

AngeloGioacchino Del Regno Dec. 21, 2023, 11:43 a.m. UTC | #1 
Il 21/12/23 10:17, Fei Shao ha scritto:
> In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly
> called only when the buffer to free exists, there are some instances
> that didn't do the check and triggered warnings in practice.
> 
> We believe those checks were forgotten unintentionally. Add the checks
> back to fix the warnings.
> 
> Signed-off-by: Fei Shao <fshao@chromium.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
diff mbox series

Patch

diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
index 2b6a5adbc419..b0e2e59f61b5 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec/vdec_av1_req_lat_if.c
@@ -1023,18 +1023,26 @@  static void vdec_av1_slice_free_working_buffer(struct vdec_av1_slice_instance *i
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(instance->mv); i++)
-		mtk_vcodec_mem_free(ctx, &instance->mv[i]);
+		if (instance->mv[i].va)
+			mtk_vcodec_mem_free(ctx, &instance->mv[i]);
 
 	for (i = 0; i < ARRAY_SIZE(instance->seg); i++)
-		mtk_vcodec_mem_free(ctx, &instance->seg[i]);
+		if (instance->seg[i].va)
+			mtk_vcodec_mem_free(ctx, &instance->seg[i]);
 
 	for (i = 0; i < ARRAY_SIZE(instance->cdf); i++)
-		mtk_vcodec_mem_free(ctx, &instance->cdf[i]);
+		if (instance->cdf[i].va)
+			mtk_vcodec_mem_free(ctx, &instance->cdf[i]);
+
 
-	mtk_vcodec_mem_free(ctx, &instance->tile);
-	mtk_vcodec_mem_free(ctx, &instance->cdf_temp);
-	mtk_vcodec_mem_free(ctx, &instance->cdf_table);
-	mtk_vcodec_mem_free(ctx, &instance->iq_table);
+	if (instance->tile.va)
+		mtk_vcodec_mem_free(ctx, &instance->tile);
+	if (instance->cdf_temp.va)
+		mtk_vcodec_mem_free(ctx, &instance->cdf_temp);
+	if (instance->cdf_table.va)
+		mtk_vcodec_mem_free(ctx, &instance->cdf_table);
+	if (instance->iq_table.va)
+		mtk_vcodec_mem_free(ctx, &instance->iq_table);
 
 	instance->level = AV1_RES_NONE;
 }
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c
index a68dac72c4e4..f8145998fcaf 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc/venc_h264_if.c
@@ -301,11 +301,12 @@  static void h264_enc_free_work_buf(struct venc_h264_inst *inst)
 	 * other buffers need to be freed by AP.
 	 */
 	for (i = 0; i < VENC_H264_VPU_WORK_BUF_MAX; i++) {
-		if (i != VENC_H264_VPU_WORK_BUF_SKIP_FRAME)
+		if (i != VENC_H264_VPU_WORK_BUF_SKIP_FRAME && inst->work_bufs[i].va)
 			mtk_vcodec_mem_free(inst->ctx, &inst->work_bufs[i]);
 	}
 
-	mtk_vcodec_mem_free(inst->ctx, &inst->pps_buf);
+	if (inst->pps_buf.va)
+		mtk_vcodec_mem_free(inst->ctx, &inst->pps_buf);
 }
 
 static int h264_enc_alloc_work_buf(struct venc_h264_inst *inst, bool is_34bit)