Re: [PATCH] drm/nouveau/gr/gf100-: unlock mutex failing to create golden context

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On Fri, 3 Nov 2023 at 12:41, Danilo Krummrich <dakr@xxxxxxxxxx> wrote:
>
> Do not return from gf100_gr_chan_new() with fecs mutex held when failing
> to create the golden context image.

Reviewed-by: Dave Airlie <airlied@xxxxxxxxxx>
>
> Cc: <stable@xxxxxxxxxxxxxxx> # v6.2+
> Fixes: ca081fff6ecc ("drm/nouveau/gr/gf100-: generate golden context during first object alloc")
> Signed-off-by: Danilo Krummrich <dakr@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
> index c494a1ff2d57..f72d3aa33442 100644
> --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
> +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gf100.c
> @@ -442,6 +442,7 @@ gf100_gr_chan_new(struct nvkm_gr *base, struct nvkm_chan *fifoch,
>         if (gr->data == NULL) {
>                 ret = gf100_grctx_generate(gr, chan, fifoch->inst);
>                 if (ret) {
> +                       mutex_unlock(&gr->fecs.mutex);
>                         nvkm_error(&base->engine.subdev, "failed to construct context\n");
>                         return ret;
>                 }
> --
> 2.41.0
>



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