Dear Nicolas, Thanks for your reviewing. On Fri, 2024-03-22 at 10:44 -0400, Nicolas Dufresne wrote: > Hi, > > Le mercredi 20 mars 2024 à 14:13 +0800, Irui Wang a écrit : > > 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; > > + } > > + > > Make sense, though on the cosmetic side, were is the err value from > if the vsi > pointer is NULL ? Do you mean the returned 'err'?, it's the status value returned by 'send message'. Even if the 'vsi' is NULL, the returned status value 'err' may still be 'NO_ERROR', there is no direct relationship between them. If I misunderstood your question, please correct me. Thank you very much. > > Nicolas > > > mtk_vdec_debug(vpu->ctx, "- ret=%d", err); > > return err; > > } > >