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drm/i915/gt: Take responsibility for engine->release as the last step 

In order to avoid a double cleanup on error, take ownership of
engine->release past the point of no [error] return.

Reported-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Fixes: e26b6d4341 ("drm/i915/gt: Pull GT initialisation under intel_gt_init()")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Tested-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107143118.3288995-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2020-01-07 14:31:18 +00:00
parent 05a8e45136
commit 7807a76b00
2 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/gt/intel_lrc.c
View File

@ -3925,7 +3925,6 @@ logical_ring_default_vfuncs(struct intel_engine_cs *engine)
{
/* Default vfuncs which can be overriden by each engine. */
engine->release = execlists_release;
engine->resume = execlists_resume;
engine->cops = &execlists_context_ops;
@ -4040,6 +4039,9 @@ int intel_execlists_submission_setup(struct intel_engine_cs *engine)
reset_csb_pointers(engine);
/* Finally, take ownership and responsibility for cleanup! */
engine->release = execlists_release;
return 0;
}

5
drivers/gpu/drm/i915/gt/intel_ring_submission.c
View File

@ -1840,8 +1840,6 @@ static void setup_common(struct intel_engine_cs *engine)
setup_irq(engine);
engine->release = ring_release;
engine->resume = xcs_resume;
engine->reset.prepare = reset_prepare;
engine->reset.rewind = reset_rewind;
@ -2007,6 +2005,9 @@ int intel_ring_submission_setup(struct intel_engine_cs *engine)
GEM_BUG_ON(timeline->hwsp_ggtt != engine->status_page.vma);
/* Finally, take ownership and responsibility for cleanup! */
engine->release = ring_release;
return 0;
err_ring: