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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-11-25 16:17:16 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-11-25 16:49:24 +0300 |
| commit | 1618bdb89b5d8b47edf42d9c6ea96ecf001ad625 (patch) | |
| tree | dc5ee929bd7a58518a4c008ee089a280c6f4e877 /drivers/gpu/drm/i915/i915_gem_request.c | |
| parent | 4ffd6e0cfe1816fced8ab8d2612e1edde81aac2a (diff) | |
| download | linux-1618bdb89b5d8b47edf42d9c6ea96ecf001ad625.tar.xz | |
drm/i915: Assert no external observers when unwind a failed request alloc
Before we return the request back to the kmem_cache after a failed
i915_gem_request_alloc(), we should assert that it has not been added to
any global state tracking.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161125131718.20978-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_request.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_request.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index bd7b21f70283..ed6cead22a86 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -599,6 +599,11 @@ i915_gem_request_alloc(struct intel_engine_cs *engine, return req; err_ctx: + /* Make sure we didn't add ourselves to external state before freeing */ + GEM_BUG_ON(!list_empty(&req->active_list)); + GEM_BUG_ON(!list_empty(&req->priotree.signalers_list)); + GEM_BUG_ON(!list_empty(&req->priotree.waiters_list)); + i915_gem_context_put(ctx); kmem_cache_free(dev_priv->requests, req); err_unreserve: |