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drm/i915: Call i915_sw_fence_fini on request cleanup 

As i915_requests are put into an RCU-freelist, they may get reused
before debugobjects notice them as being freed. On cleanup, explicitly
call i915_sw_fence_fini() so that the debugobject is properly tracked.

Reported-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Fixes: b7404c7ecb ("drm/i915: Bump ready tasks ahead of busywaits")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190411122445.20060-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2019-04-11 13:24:45 +01:00
parent aefa95bacf
commit 0c441cb6f3
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_request.c
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@ -101,6 +101,7 @@ static void i915_fence_release(struct dma_fence *fence)
* caught trying to reuse dead objects.
*/
i915_sw_fence_fini(&rq->submit);
i915_sw_fence_fini(&rq->semaphore);
kmem_cache_free(global.slab_requests, rq);
}