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

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

Signed-off-by: Irui Wang <irui.wang@xxxxxxxxxxxx>
---
 .../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





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