[PATCH v2] media: mediatek: vcodec: Handle invalid decoder vsi

From: Irui Wang
Date: Wed Mar 20 2024 - 21:48:20 EST


Handle invalid decoder vsi in vpu_dec_init to ensure the decoder vsi is
valid for future use.

Fixes: 590577a4e525 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver")

Signed-off-by: Irui Wang <irui.wang@xxxxxxxxxxxx>
---
changed with v1:
- add Fixes tag
---
.../media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c b/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c
index 82e57ae983d5..17770993fe5a 100644
--- a/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c
+++ b/drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c
@@ -231,6 +231,12 @@ int vpu_dec_init(struct vdec_vpu_inst *vpu)
mtk_vdec_debug(vpu->ctx, "vdec_inst=%p", vpu);

err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
+
+ if (IS_ERR_OR_NULL(vpu->vsi)) {
+ mtk_vdec_err(vpu->ctx, "invalid vdec vsi, status=%d", err);
+ return -EINVAL;
+ }
+
mtk_vdec_debug(vpu->ctx, "- ret=%d", err);
return err;
}
--
2.18.0