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drm/i915/gt: Cleanup partial engine discovery failures

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[ Upstream commit 78a033433a ]

If we abort driver initialisation in the middle of gt/engine discovery,
some engines will be fully setup and some not. Those incompletely setup
engines only have 'engine->release == NULL' and so will leak any of the
common objects allocated.

v2:
 - Drop the destroy_pinned_context() helper for now.  It's not really
   worth it with just a single callsite at the moment.  (Janusz)

Signed-off-by: Chris Wilson <chris.p.wilson@intel.com>
Cc: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220915232654.3283095-2-matthew.d.roper@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chris Wilson
2022-09-15 16:26:51 -07:00
committed by Greg Kroah-Hartman
parent 5e4194d89f
commit 5c855bcc73
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/i915/gt/intel_engine_cs.c
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@@ -1343,8 +1343,13 @@ int intel_engines_init(struct intel_gt *gt)
return err;
err = setup(engine);
if (err)
if (err) {
intel_engine_cleanup_common(engine);
return err;
}
/* The backend should now be responsible for cleanup */
GEM_BUG_ON(engine->release == NULL);
err = engine_init_common(engine);
if (err)