From b2164e48155607b8aa3c3004a03768cc30558d6e Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 20 Sep 2018 20:59:48 +0100 Subject: [PATCH] drm/i915/execlists: Onion unwind for logical_ring_init() failure Fix up the error unwind for logical_ring_init() failing by moving the cleanup into the callers who own the various bits of state during initialisation, so we don't forget to free the state allocated by the caller. Signed-off-by: Chris Wilson Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20180920195948.16448-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/intel_lrc.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index a51be16ddaac..43957bb37a42 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -2396,7 +2396,7 @@ static int logical_ring_init(struct intel_engine_cs *engine) ret = intel_engine_init_common(engine); if (ret) - goto error; + return ret; if (HAS_LOGICAL_RING_ELSQ(i915)) { execlists->submit_reg = i915->regs + @@ -2438,10 +2438,6 @@ static int logical_ring_init(struct intel_engine_cs *engine) reset_csb_pointers(execlists); return 0; - -error: - intel_logical_ring_cleanup(engine); - return ret; } int logical_render_ring_init(struct intel_engine_cs *engine) @@ -2464,10 +2460,14 @@ int logical_render_ring_init(struct intel_engine_cs *engine) engine->emit_breadcrumb = gen8_emit_breadcrumb_rcs; engine->emit_breadcrumb_sz = gen8_emit_breadcrumb_rcs_sz; - ret = intel_engine_create_scratch(engine, PAGE_SIZE); + ret = logical_ring_init(engine); if (ret) return ret; + ret = intel_engine_create_scratch(engine, PAGE_SIZE); + if (ret) + goto err_cleanup_common; + ret = intel_init_workaround_bb(engine); if (ret) { /* @@ -2479,7 +2479,11 @@ int logical_render_ring_init(struct intel_engine_cs *engine) ret); } - return logical_ring_init(engine); + return 0; + +err_cleanup_common: + intel_engine_cleanup_common(engine); + return ret; } int logical_xcs_ring_init(struct intel_engine_cs *engine) -- 2.30.2