On Mon, May 03, 2021 at 10:57:38AM -0500, Jason Ekstrand wrote:
> Since free_engines works for partially constructed engine sets, we can
> use the usual goto pattern.
>
> Signed-off-by: Jason Ekstrand <jason@xxxxxxxxxxxxxx>
I guess subsequent patches apply the same for the set_engines command and
__free_engines disappears? Otherwise feels a bit silly.
Anyway looks correct.
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/i915/gem/i915_gem_context.c | 13 ++++++++-----
> 1 file changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
> index 10bd1b6dd1774..ce729e640bbf7 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
> @@ -420,7 +420,7 @@ static struct i915_gem_engines *default_engines(struct i915_gem_context *ctx)
> {
> const struct intel_gt *gt = &ctx->i915->gt;
> struct intel_engine_cs *engine;
> - struct i915_gem_engines *e;
> + struct i915_gem_engines *e, *err;
> enum intel_engine_id id;
>
> e = alloc_engines(I915_NUM_ENGINES);
> @@ -438,18 +438,21 @@ static struct i915_gem_engines *default_engines(struct i915_gem_context *ctx)
>
> ce = intel_context_create(engine);
> if (IS_ERR(ce)) {
> - __free_engines(e, e->num_engines + 1);
> - return ERR_CAST(ce);
> + err = ERR_CAST(ce);
> + goto free_engines;
> }
>
> intel_context_set_gem(ce, ctx);
>
> e->engines[engine->legacy_idx] = ce;
> - e->num_engines = max(e->num_engines, engine->legacy_idx);
> + e->num_engines = max(e->num_engines, engine->legacy_idx + 1);
> }
> - e->num_engines++;
>
> return e;
> +
> +free_engines:
> + free_engines(e);
> + return err;
> }
>
> void i915_gem_context_release(struct kref *ref)
> --
> 2.31.1
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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